To play devil's advocate, i was just there from 8/7 - 8/10 and didn't have any of those issues.
I also think someone who is trying to do ALL of both Disney and Universal on the same trip is now asking A LOT.
You're better off just doing a Disney trip and letting that be your focus for 4-6 days as opposed to 7-12 days doing both. I say that as both a TA and someone who is doing exactly that this upcoming October and already foresight dreading aspects of it. We have 4 park days at Disney plus Mickey's Not So Scary and then 4 park days plus Horror Nights at Universal. Me and my beau are annual attendees, but I have three friends who've never been who asked me to come with and curate the trip for them. lol Wish me luck, I'm gonna need it.