That and I think I've read somewhere Bryan Cantrill saying they want to move from Twitter Spaces to something else, so for now it's finished, and they're going to make another thing, similar to how they dropped On The Metal. I may be mistaken though, since I can't find it now. Edited the post to clarify my uncertainty.
I think it's just that we complain about Twitter Spaces every week. ;)
Technical issues aside, we're definitely not moving away from Twitter Spaces (and, more generally, social audio): it has allowed for very dynamic conversations and ones that include many more people. For those who are new to Oxide and Friends, I posted links to a few of my favorite episodes here about a month ago.[0]
