I think it was unnecessary to announce it 'now' before the movie's even out in theatres. People like myself could be going in thinking there's a more substantial version of the movie sitting on the shelf and could feel short-changed, even though that's stupid and there's 'always' a chance of an alternate version of a movie seeing release down the line.
It's not quite like it'll make me not want to go see it, and the R-rated version definitely should exist for those who want it, but the timing is off and unnecessary. Having an R-rated version is definitely fine, especially if it adds something to an already decent movie. People could come to prefer it, or not etc.