Is he somehow a 'liability', no, of course he's not.
The thing which has struck me about Joey King right from the first moment I saw him and became aware his existence all the way back in Maui, was how hard he worked out there on the floor, always, busting his tail in spite any his perceived shortcomings, and no matter how he might screw up at any given moment or time, how the fact is he he fought and continued fighting.
There was a thread post-Maui, asking how we felt about this team in the aftermath, and I said the two players I was most impressed with were Joey King and Maverick Ahanmisi, simply due their relentless effort always on the court, and in spite their deficiencies.
And what the f*ck do I know, likely nothing, as I coach 4th and 5th grade ball, but how I do try and and coach within that realm, is that those boys try the hardest, will always play first and most. Those willing play the game the right way, pass, pass, pass, pass, and pass, until you find that inevitable open man and let him take his, and then you crash the boards in case he misses, and god granted you get the rebound, and then you just reset, and pass around all over again. You share, otherwise get off my floor, and try out for the Globetrotters if you want to do that selfish isolation ****, and best of luck with that, because you will not ever play for me... and I've lost some quite young talented boys due to that, boys thinking their natural and inborn talent would and will always be enough to skate them by, and how Christ, despite their youth, some these boys can *really* fricken play, but how that don't mean whit to me, as singular talent is just is, and lest you can or will play within the construct and concept of a 'team', then you will not play for me, so get the hell off my floor, and I've had do that to my own son too.
Give me always the boys who play hardest and play the game as they've been asked and taught to do so, and there would be one Joey King, as there is hardly child could play harder.