In regards to OP, the lowering of bow damage was intentional.

Its not a bug. So its not likely going to be fixed.

I'm not sure what the problem is?

If your problem is "bards don't do enough damage" then that's a separate discussion.

But if your question is "will it be fixed", then no, it won't be fixed, because it isn't an issue.

Will it be changed? Who knows? But most likely 2.1 bards will not be getting any buffs.