This is spot on and the exact point,I think we are getting to the stage where we may never know what these limitations are because he just doesn't appear to be getting a game anytime soon (even though he has a token selection as an emergency today).
Watching Weitering play last night and over the years, he is not quick nor does he create scintillating runs off half back. He's very good because he positions himself well, marks the ball or spoils it in the air. Obviously, he's a lot stronger than Busslinger but they are not too dissimilar in type.
I'm in the camp that wishes to see what we have with him and I'm willing to give him a chance to see what he can offer. If that means a steep learning curve for him and some mistakes for a game or two then so be it. At least we'll know more.
We know Buku isn't an AFL KPD and never will be, He may be able to occasionally pinch hit for a quarter or 2 pending injuries but when he has to play full matches he is always exposed,
Like you said we just don't know with Buss so when the argument comes up it quickly becomes redundant because we know Gards and Buku aren't good so what harm does it do seeing where he is at when playing at the level.
If he is not good so be it he goes the way of Lewis Young and Kiren Collins before him