So Biggs was entirely pointless in ANH. I mean I know we could half his screen time without any negative effects but his other scene was entirely there to tell us the audience that Luke was a good pilot. Guess he didn't need to bother.
I'd argue he was unnecessary yeah. That doesn't mean he didn't add anything in terms of building a picture but by now we are used to the idea that piloting is a pretty basic and commonplace skill in the SW universe. Everyone can do it to some extent. We don't question why characters in films can drive cars or cook food without any run in, why would we question Rey having some pretty basic piloting skills in a universe where we'd be hard pushed to identify a character who didn't?
and half the internet. Don't forget half the internet
Not at all. Not even remotely.
None of this anti TLJ "backlash" is remotely representative of the fanbase, or even anything like an even share.