People's issue wasn't that TLJ didn't play it safe, they just didn't like how they played it. Its got a very strange tone, bad comedy, weak story for Finn, etc. Its really annoying that TLJ won't just allow people to dislike it, there's always gotta be a catch.
Infinity War the same year didn't play it safe, and was much more satisfying to the masses. I think its a better comparison to TLJ than Endgame if you have to make a comparison.
But honestly, there's no "proving" anything. Its non-sequitur