Everyone knew how it worked before the update and it was pretty easy to notice how it changed.Also, I don't think it's "White Knight-ing" to try and educate people who seem to be unaware of what a queue is or how it works.
It used to be 15 mins, it got borked after U16, that was pretty clear, I don't think you should educate anyone.
ED updates have a long history of introducing crazy new bugs or reviving old ones. If something that was working more or less fine gets totally broken after an update, then you can be 99.99% sure it's a bug. There's virtually zero reason to assume anything else like players doing something wrong or weird.