My problem isn't really with how easy it is for Thanos to collect if they're grouped up, it's my dislike for making humans special.

Time - humans have via sorcerers
Space - humans had via Odin, Red Skull, Howard Stark, and SHIELD
Mind - humans had via Loki, SHIELD, HYDRA
Reality - humans had via the convergence
Power - humans had via Star-Lord being able to touch it

Granted the last two aren't really the same as having it on Earth, and as said the mind stone was there because of Thanos/Loki so it gets a little pass, but for me this is already too much and I dislike it.
I get it because of plot convenience, but that's making the universe feel really small. Having the Soul stone be in Wakanda would be so lame. To say nothing of the implications of black people having soul.
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There are some things where I just bypass critical thinking. - ROD

is Black Panther the first MCU movie to introduce... *spoilers*

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