Damn... good point, I like it. "For the record, this was my plan" are the snarky words of an egotist! Yeah so Quill was 100% destined to fuck up the de-gauntleting™ ? Love (human) + Ego (celestial) = chimp out over dead Gamora. It also gives validity to Strange saying there was no other way... that this path was the 1 in 14,000,605 where they win. Starlord was going to fuck this up no matter what, but the timeline with the 1 out was how it panned out.
Hypothetically, if another timeline had a chill Quill and they removed the gauntlet, I feel Thanos would still be able to stand toe to toe with the Avengers/GotG and get it back. His owning the Hulk was an important exposition choice in my opinion as it shows how strong Thanos is without the stones. If you notice carefully, the Hulk got BTFO'd without Thanos even using the Power Stone whilst fighting. Thanos is a fucking beast with or without the gauntlet. Mantis did say "be quick, he is very strong" so a chill Quill timeline probably winds up with them STILL getting spectacularly curb-stomped and probably had Tony dying in most of the chill Quill timelines which would just be yet another timeline tossed into the other 14,000,604 failures.
This movie makes me feel like a fucking dork... but I dig that~