Doesn't really affect my opinion on this either way, as I don't even see a point in watching something that was already done beautifully with traditional animation 26 years ago- I actively cringe every time I hear some of the line readings in the live action trailers compared to the original ones of the 1991 animated film. I'm assuming that like so many other live action rehashes this isn't really meant for me, anyway; I actively grew up with the original, and that will always be Beauty and the Beast for me. This feels aimed more at younger people who may have seen the original film at some point but don't have much nostalgia attached to it (and who actually know who Emma Watson is, I guess.)
As for the issue at hand, it's not the first time an older character with no previously specified preference has been "re-imagined" as gay because he was originally effeminate or otherwise stereotypical- I feel this issue could be avoided if people would actually MAKE NEW STUFF with interesting, fully realized characters who might also happen to be gay. But that's just me, I guess.