Years Gone By, Jammed Together, Live Wire/Blues Power, The Big Blues (ok, not Stax so wouldn't have happened), and any of his other archival live releases would have been better Classics picks for Albert King.
Also, if you're talking about my post, its not the fact that its an outtake, novelty or covers album disqualifies this from being a good pick, its that if you're going that route it better be damn good and have something to draw you back repeatedly. All of your examples have been legitimately great albums that would have been worthy of highlighting. These albums just aren't all that great.
The Bar-Kays pick was apparently done at the request of Stax from Storf's story and the King album was to fill out his goal to own every Stax album during quarantine.