While I understand that it is not in principle something that is important, in practice this will hamper modding on non-EE platforms quite a bit. I mean, do consider that:
1. Many mods will not be updated to accommodate this (especially since you will revert it anyway).
2. Tools such as Big World Setup (which is recommended everywhere for installing mods) is broken until the behavior is reverted, which will confuse a bunch of persons. This does not regard "megamodding" alone, because even the minimal amount of mods needed for it to function is affected by this.
3. Some users might try to edit the tp2 files themselves to fix this, and that seems a bad idea to me. Worse, some will try to run on older WeiDu versions to get around this in the meantime which also is a bad idea.
4. It seems like quite many mods has that wrong string. I have not done much testing with this, but all the mods I have tried have had the same issue. Maybe because they have used BG2 Fixpack as a template? So it doesn't seem very isolated.
So, considering those things, and the fact that BGT/BG2 modding is compromised as a whole by this (BG2 Fixpack and other "fix" mods which need TobEx are needed for many other mods), I would consider this important enough to push a quick fix. Do you not agree?