This isn't users not getting the memo yet, this is users being faced with an unfortunate choice between a buggy, slow client and a new client that doesn't implement important functionality like Spaces and Threads.

I've only started my Matrix journey, in the form of writing bots using the matrix Python library. I'm keeping my fingers crossed, as the Matrix protocol could be really impactful.

Both Spaces and Threads are about to land, and there are other lower-profile features that also need rounding out. We would expect full parity by April this year. At which point migration should be an obvious choice.