Although there are things more entertaining, even this TAS is probably entertaining enough to be published imo. I do wonder quite a bit about the quality... is it perfect? The TAS looks to me (like most N64 TASes) like it's TASed till the wanted result was achieved, and that version was taken. It doesn't look like everything that could possibly the fastest was tested... and this also shows a bit in the rerecord count. Especially the team yoshi battle and the end of the polygon team battle made me wonder if I was watching perfection, or just a version that looked ok. I still think it would be nice if an SSB TAS included tool assisted world records of all characters at break the targets and board the platforms. And that link Raiscan posted showed that this TAS misses out on a lot of potentially very entertaining things this game offers
While I would like to see a 70 star run (BLJ less, no the are not boring, but removing them would keep the run from being a 120 star run copy - 50 stars, and I'm sure plenty of entertaining strategies could be found instead of BLJ's), what I would really like to see is a playaround, because frankly the most entertaining videos of this game I have seen is those of Mario doing random extremely crazy stuff. Grabbing whatever stars you feel like, no restrictions on what glitches to use, and finish it in half an hour.
About the bad dump thing i dunno(dont have that problem myself) but for the input thing i have experienced that if the keyboard is configured to full turning speed(75-128) the game will register a "down" key as "up". TAS input plugin and lower turning speed should fix it.