Honestly? I wouldn't say equally bad - more that it's about equal. It's extremely unusual that the OP experienced four buses to a different park in even 45 minutes, given that the buses run on an approximately 20-25 minute interval. It's not impossible, by any means, since outside influences (traffic, mechanical, etc.) can delay a bus coming from one destination while a recently-clear backup might happen to release several buses going to the same destination from the same resort in a short period. It's entirely possible there were no DHS buses for the hour before the OP started waiting for the Epcot bus, then they all bunched up.
When the third DHS bus arrived, I would have asked the driver for help. This isn't just "you should have done this" advice - I actually DO it.
While I'm aware many/most people on the DIS are not accustomed to public transportation, I feel obligated to point out that this happens every day, in every city - and often those passengers who are packed in and standing have already been standing/walking much of the day to perform their jobs. Surely it's not unreasonable to expect Disney Guests who've been walking around all day by choice doing something enjoyable to stand for a bit? Yes, on a moving motor vehicle. Buses have been around for years - they're extremely safe.
"and paying for Disney Deluxe rates" is elitist, if not outright snobbish. It implies that Guests paying for lesser accommodations are worthy of lesser transportation services despite most Deluxe resort Guests having - i.e. paying for - proximity to the parks and a wider variety of transportation options. In addition, fewer Deluxe Guests use the bus transportation; more tend to bring or rent cars. Therefore, it would not be cost-effective to run separate buses for each resort. Some people don't like the buses the way they are now? Can you imagine having to coordinate close to 100 bus routes for up to eighteen hours a day? Disaster.
Guests who choose not to stand on buses - again, despite the apparent safety - have options, including a taxi, or stepping aside and waiting at the front of the line for the next bus. Yes, even if there's already been a long wait for a bus.
I absolutely applaud your post. Disney transportation is mass transportation. Delays happen and the experience one day to the next or within the same day will often vary. They get full, have mechanical problems, or it could just be heavy traffic. One day the pumps below the water bridge weren't turned on, causing the road to flood and buses had to route all the way around back stage to get to MK. Stuff like that can happen and cause delays.
As far as the deluxe resort thing, I again agree with the previous poster. Transportation is transportation and Deluxe resorts typically offer multiple forms of transportation.
As for safety, I had a guest once complain on the boat that we were loading it to unsafe levels, despite the fact that capacity is 120, we had 108 on the boat, and there are over 140 life vests on board. Ironically, she was happy to stay on the boat despite her apparent safety concerns.
Lastly, I want to do my best, at every opportunity, to put something to rest on these boards. There have been no cutbacks in the number of buses,watercraft, or monorails currently running due to the economy. In fact I have asked bus drivers and they informed me they have nearly 300 buses running every single day.
The boats(at least MK boats) do not cut back due to the economy either. In order to refurbish boats, sometimes in the middle of the week and during the day, a boat will be pulled out of the operation to be worked on, but by the time the park is getting heavy traffic again around 4pm, we are back to peak capacity.
Overall, our coordinators and managers do a good job at dealing with challenges on a daily basis. It was remarkable to see the quick action taken when the monorails went down last week. Very quickly, buses and watercraft stepped up and had extra boats running and buses created a stop specifically for the resort loop. Do you think that might effect other areas of the resort? Of course. Again, these are things that happen, be it large or small, on a daily basis.
I think I've made my point, but if I've bored anyone who scrolled to the bottom, here is a summary of my point:
Disney transportation is mass transportation and you should allow 1 hour for each form of transportation necessary to get to your destination.