Hm. adelikat suggests the antithesis of retroactively removing a movie from obsoleted status. That is, retroactively placing a movie in obsoleted status.
I'm not sure that the system needs to be fixed by retroactively obsoleting movies. However, my opinion is that it is all right to reassign movies between Vault and Moon after publication, not as a tier policy, but to balance Vault and Moon out. There are, as of this post, 723 Moon publications and 497 Vault publications. Since the beginning of August, 2013, there have been 32 Moon publications (excluding those that are now in Stars) and 11 Vault publications. After the last Gruefood-to-Vault movement, there have been consistently more Moon publications than Vault publications and that will cause the gap to grow wider.
Anyway, regarding DW3 and Takeshi no Chousenjou, if there are no problems, I will reassign them to Moon tier now because they are not the fastest speed record. Their status can be changed later if there are any further decisions.
Edit: I found a few more Vault pairs which are in question:
[1621] NES EarthBound Beginnings (Japan) "warp glitch" by pirohiko in 23:09.56
[1302] NES EarthBound Beginnings (Prototype) by Nitrodon in 47:56.08
[980] NES Snow Bros. "2 players" by Randil in 13:56.85
[2267] NES Snow Bros. "1 player" by asdfgary in 13:12.61
EarthBound Zero is arguable, since the two different versions can be considered two different games. Snow Bros. not so much.