Interesting thread.
Was certainly some edgy moments in crowds, I got to Park early on Friday, so whilst it got busier for Wet Leg, we were at the back of the area listen/watching in comfort.
That said, I think sitting anywhere near the front of stages especially in chairs is the festival equivalent of the Sun bed towel thing at Holiday resorts.
I think next year you should be able to pre-empt the bigger draws a bit easier, and plan accordingly. I think 6 months ago, Wet Leg on Park would make sense, but they've taken off. Conversely, Fender has done the same and, due to the Doja reshuffle, it worked out for all. Big stage, big crowd.
It's a trade off on areas like Arcadia...you want the names and line up, but will need to sacrifice time to get there plenty early.