From the Homewood Suites to the
Disneyland entrance, an Uber would normally be less than 10 dollars. I often take Ubers from the park entrance to a hotels a little bit further than that along Harbor and it usually fluctuates from between 6 and 9 dollars before tip. Sometimes Lyft is cheaper than Uber. If you happen to leave when a big convention is getting out, its raining or some other weird surge is happen, then prices can get a bit crazy. But even then, I've never seen prices for a Disneyland to any Harbor hotel go up to 50 dollars in my dozens of trips and what your friends experienced was an extreme anomaly if they just got a normal Uber.
For the Homewood Suites, you also have other options such as walking to the Toy Story Lot, taking an ART bus or walking all the way to the entrance in the extremely unlikely situation that Uber is obnoxiously expensive. CMs do occasionally stop people from walking in/out the front of the Toy Story Lot. You can't really predict if/when this will happen because it depends on the individual CM and what they feel like doing in a particular moment. It's sort of like when one day, a part of the park is a fireworks viewing area and the next day some CM decides they want that exact same spot to be a walkway rather than a viewing area.