How is this aikido, though? it looks and feels much more like tai chi.
That's what I thought too, I remember doing these things when I did Tai chi. I left tai chi because I felt aikido was better. I also haven't gone and found a tai chi forum to tell them all about how this tai chi stuff is missing essential principles only found in aikido. I'm happy to do my thing and let them do theirs. I have considered for a long time starting a thread to talk about the differences I've noticed between ki-aikido internal stuff and the tai chi type things, but I've never done it because I knew who would post on it and I couldn't be bothered to have those discussions to be honest.