Yes, this is not an important thing. But if the mapper doesn't have any purpose, it's better to make all diffs consistent.
EDIT:
I talked with Hayashi about his taiko diff.
According to it, he has been away long time so his taiko hasn't been updated. And he has two taiko map(one is current one, another is more difficult one), so he will merge these two diffs. Then he will fix many points that this map has got so far.
I don't know how Nakagawa-Kanon thinks about this. Even if taking long time, I'd be happy to recheck it.
EDIT:
I talked with Hayashi about his taiko diff.
According to it, he has been away long time so his taiko hasn't been updated. And he has two taiko map(one is current one, another is more difficult one), so he will merge these two diffs. Then he will fix many points that this map has got so far.
I don't know how Nakagawa-Kanon thinks about this. Even if taking long time, I'd be happy to recheck it.