The change needed to happen regardless of whether they were going to sell LL access. You can't have half of the park eligible to skip every line as many times as desired, which is what
DAS was turning into, because now the LL line (full of DAS users and their parties) was effectively becoming the main line, with a secondary line of those who didn't find a reason to apply. Many in the DAS line only needed the DAS line because of how many people were in that line in the first place. When visiting the park, when ride capacities are filled with mainly LL and most of those people are there for a disability, it's a problem. Operations had to figure out if there is some alternative way to meet people's needs, which is why DAS is being reserved for people who need it most or all of the time, not people who might need it for some rides sometimes. I have taken those trips where their system was pushed to fill the entire ride from LL, then allow one party from standby - and fixing that is not about greed.
You can dislike the timing, but there are many people who only had an occasional need, and that is why there are other accommodations. Nobody should be explaining constantly - that is the sort of situation DAS is meant for. That may warrant a call to member services and describing the situation, as nobody who needs to leave every single line should be forced to stand through every single line.
None of your points prove this is about money at all. They are things you are saying you wish would happen. But they don't make some huge case that if Disney doesn't hand out DAS like free candy it's because of greed.