1. While the order may not be totally accurate, it makes more sense than the release order in some places.
2. I believe so. This forum thread:
http://www.intanibase.com/oldforum/index.php?topic=1534.0 has some posts explaining that.
Quoting
@Einhänder second answer from the second forum:
"...Those have the original titles. Due to the popularity of widescreen, the studios started vertically tightening-in the credits of their Academy-ratio cartoons circa 1953 to allow theaters to crop off the top and bottom of the picture for widescreen without also cropping off information in the titles. Warner Bros. did it, Paramount did it, and so did MGM. The red MGM lion logo could not be cropped for widescreen, so they came up with the blue logo which could be safely cropped. Note that the blue MGM logo in the cartoons you listed is the earlier version without the "®" (registered trademark) symbol next to the logo, the same version used in
Neapolitan Mouse. Also note that the cartoons you listed have the Western Electric Sound System trademark in the credits, not the Perspecta Sound credit.
So now you're wondering, why the heck did, say,
The Farm of Tomorrow and
Mice Follies end up being released in 1954 with the red logo when the blue logo had come out the year prior? Well, keep in mind that the cartoon studio didn't make one cartoon, let it be released, then make another one; no, they had multiple projects going at one time. The amount of time it took before a cartoon was finished could vary, of course. Then there was the backlog... cartoons could sit on the shelf for a while before being released, and I imagine it's possible that some cartoons spent more time on the shelf than others. All this would explain why the latest-released cartoon with the red logo was released after several cartoons with the blue logo were released..."
Plus, I remember that I saw few months ago or a year ago a reissue print of "Johann Mouse", 1952 with Academy Award Winner 1952 tag (just like used in "The Cat Concerto" and "Quiet, Please!").