Hi, welcome to the forum!
I took the img tags off your links, because they're to the container pages and not the images themselves.
MusicBee will infer Album Artist from the Artist value but not the other way around. The easiest solution to your problem would be to use the Additional Tagging & Reporting Tools plugin to copy Album Artist to Album, which that plugin will let you do for as many files at once as you need to. (Test with a few first to make sure it works as expected!)