How are they getting catered to like royalty? They waited in the same line you did, using mobility devices they spent money to rent, AND they probably put up with ignorant assumptions and judgmental stares from jerks like you for their whole trip.
FWIW, Disney does give return times at the small minority of attractions without mainstreamed queues, like BTMRR - nobody skips lines except MAW kids. So those people who got you all knotted up and frothy at the mouth with their ECVs were doing exactly the right thing since Maelstrom's queue is mainstreamed - they waited in line.
But honestly, you seem to love making assumptions, so wouldn't you most likely end up assuming that someone who had a return time is just skipping the line and be on here whining about it later?
EDIT: Oh, you spewed more garbage.
Not everyone can self-propel in a wheelchair or has someone to push them. The lady should have practiced more at driving the ECV, and probably turned her speed down, but that's not a good reason to ban a class of mobility devices from lines.
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DAS is not given out to people for mobility disabilities. The poster who indicated it was is wrong. (And honestly, the DAS is basically a perpetual return time card, which you liked the idea of a few posts ago.)
Your Wikipedia MD doesn't actually qualify you to diagnose the medical conditions of complete strangers by looking at them, and your opinion on the supposed validity of someone else's medical conditions literally does not matter anyway.