I'm overall pleasantly surprised with her portrayal in this run. In addition to being consistent to previous portrayals, as you alluded to, her progression ended up being very natural. She's still her, but with more polish this time.
On somewhat of a sidenote, this run and previous runs before it made me theorize that perhaps, from a writer's perspective, Shuri is an "easier" character to write than T'Challa?
T'Challa received a different take each time a new writer came in. Stan's T'Challa was different from Kirbys, which was different from McGregor's, which was different from Gillis, which was different from Priest's, which was different from Hudlin's, which different from Mayberry's, which was different from Liss', which differed from Hickman's, which even differed from Coates'. Each writer's T'Challa obviously have similarities with each other, yet each take is distinct. Part of it, I suspect, is the king/hero dynamic T'Challa has, resulting in writers leaning one way or the other. There's probably more to it, but nothing crosses my mind at this moment.
However, Shuri has basically been the same character throughout her entire publication history, at the hands of six writers (Hudlin, Mayberry, Liss, Waid, Hickman, Coates). Rather than several distict takes, we've ended up with somewhat of an evolutionary process with her. Her just being a monarch probably helped a lot to that occurring, I suspect.