That shyt took 3 years though.
We literally had T'Challa with no ancestors, no homeland, no wife, no fam, no compatriots....nothing, for over a year. He was completely dolo.
Then before he restored the multiverse he took one final ass whooping from Doom.
shyt got put back in the end, but that shyt wasn't fun at all. He got put through the ringer
All of the stuff you're talking about happened during the second half of Hickman's story....Also Reed stuck with T'Challa through the whole thing.
During that time we also got T'Challa showing off new abilities, designing planet killing bombs, designing a life raft to survive the end of existence, taking down Black Dwarf, squaring up with a Batman analogue, nearly killing Namor on two separate occasions, and just acting like himself. Hickman's T'Challa was the closest we've gotten in years to the Priest version.
That's why I said my biggest issue with his run is him threatening to kill Namor and not following through.
Deconstruction can be fine, but it can't start out with the character at their lowest point and not feature the character have a single memorable moment.
Seriously no matter how much you might like Coates run there isn't a single moment in that first season that's memorable for T'Challa. Like I been saying whenever people review or talk about that series all they talk about is the Dora Milaje or Shuri, there isn't much of anything to talk about regarding T'Challa that's positive.
Coates is a smart dude, but his writing for T'Challa is just fukking dumb. Like that whole thing where T'Challa meets with the dictators and the footage from the meeting leaks to the public
Hickman put T'Challa through the ringer, but he never made him look like a incompetent jackass. In Hickman's run they were dealing with the end of all existence and were doing everything they could to save everyone without selling their souls (even though that's what Strange literally did).