He’s gotten away from good discussions/arguments to just shouting and virtue signaling on the calls.

Not even remotely true. Don't mean to sound rude, but you need to look up what virtue signaling means. The reason why he's like that sometimes is because some people will not answer a simple question or they'll be dishonest or they'll call in to preach instead of having a conversation. IDK if you watched a lot of it, but it gets annoying whenever a caller wants to waste time and Matt just doesn't put up with it, as he shouldn't. Many of the other hosts are too nice and that can get pretty annoying after a while.

this low effort “own the Christian” crap.

Matt never did anything like that. I'm fully convinced now you only seen clips of the show and never actually paid any real attention to the show. If you did, you would know Matt just wants to have a discussion and he only gets aggressive when the caller doesn't want to listen for a second. Stop bullshitting and actually watch and pay attention to an entire episode of the Atheist Experience with Matt on. If you think what Matt did on the atheist experience is low effort, I would love to tune into your podcast. It's completely fine to not like it, but calling it "low effort" is extremely ridiculous. You wouldn't stand a chance against any of these callers.