Oh we've definitely spent our fair share of time picking up other guests on property at multiple resorts and sitting in traffic, but either way we've aways had plenty of time at the airport. Like I said nothing, even leaving 3.5 hrs ahead of time, is a guarantee, but 99% of the time changing your ME pickup time to something around 2-2.5 hrs. prior to actual departure time will still give you enough time. I agree if it's going to cause you lots of anxiety/stress; it's not worth it, but everyone is different and there have been a ridiculous amount of ppl. that this has worked for multiple times, so I'd also say stating it's "dangerous" is a pretty big exaggeration.