I think he does - here's a better video that may show more of the tank.
https://www.youtube.com/watch?v=g_lzGI-k5WMI can take out some of the "decorations" but I don't know that they're taking up that much room. Also, he sleeps on/near those larger pieces. So I'm not sure if removing those would make things worse? Steve recommends adding some cover - as of right now that's the only real cover he has (I have added plants recently too, I'll add another video tonight)
I can't think of anything that has changed drastically other than the ATBA. The only thing I can think of is what led to the ATBA in the first place. About 6 months ago, I'd say, he managed to craw out of the tank. I thought that there was PLENTY of room between the basking area and the tank lid, but he was able to climb over 8" to the lid and somehow pull himself over. He fell to the floor, and I was TERRIFIED. But he seemed OK. No cracks in the shell, no trauma that I could see. No cuts. He seems a bit skiddish at first, of course, but for all intents and purposes he seemed just fine!
From there I lowered the water line, the basking area, and put up some cardboard in the corner (figured out that's how he got out, using the corner for leverage) as a temporary fix while I created the ATBA. Other than that, nothing has really changed. And I should mention that he wasn't basking much even before this fall. Now that I think of it, he hasn't been basking for much longer that I remember. I thought it's only been a few months, but it has to have been at least 6 months, because for a while, I know he wasn't basking but ALWAYS climbing on the basking area to try and get out, that's it. Never to bask....