Some people have already mentioned some points I'm about to make here, but I will chime in anyway.
I think going down this road to change/remove rides based on mob reaction is a really, REALLY dark path to go down. If Splash Mountain gets changed, then what else is next? Dumbo? Peter Pan? (Points of which have been previously brought up). I PROMISE you, once you "fix" something in the parks, the mob will look for something else to be angry about. It will never stop.
Now to be fair, if you want SM to get changed, I'm not saying you're part of this "reaction mob". If you want SM to be overlayed into PatF just because you think it would make a better ride overall, then fair enough. I will say though that Splash Mountain has been open at DL for, what? 31 years now? The ride and the song that accompanies it has been beloved by guests for all those years and, as far as I know, has not been massively decried for being a "problematic" ride up until now. If you want this to happen simply out of reaction to recent events or what the mob is saying, I question your priorities in life; especially if you've gone on this ride, enjoyed it all of these years, and haven't thought about this until now. C'mon.
I'm sure the majority of people on the ride are just going on it and enjoying themselves. They're in it to have a good time and not nit-pick for any flaws they can possibly find. To do this based on people acting on reactions is, I think, a long-term bad decision. If Disney goes down this road, we won't be getting brand-new rides for a long time because Disney will be spending all of this time and money trying to "fix" rides that are "problematic"!
That being said, I would not be opposed to a Princess and the Frog ride. Just not at the expense of Splash Mountain. Ideally it would be great as a better "Frozen Ever After". But if they insist on overlaying Splash Mountain, I would be very much opposed to it as I was to ToT/Guardians (Which pleasantly surprised me!), but it would have to be really, REALLY good to sell me on it.