yes 'poor aim' or else, maybe, perhaps Hulk swung at Thor's hammer as he has done before. and the result was much as it was before, that the hammer stopped.
I expected Thor when swinging his hammer to actually swing his hammer, and not to have it stop at Hulk's fist and then be shown aloft in the air, in the opposite direction.
dunno, I guess I'm just fussy that way but, having seen Thor swing and follow through many times, I would say that he couldn't follow through on the occasions above and that it might have just a little to do with Hulk's fist meeting and matching it.
as for charging up the hammer, well Hulk's also taken far greater attacks from far greater opponents than Thor, what are you trying to prove? I said initially that Hulk's blocked Thor's hammer before and I showed it, I said that in that first scan the hammer rebounded and it sure does look like it did. did I say I knew how charged the attack was?
Hulk's withstood far worse without trouble, I doubt this'll trouble him any.
also, in that scan you provide, do you see how Thor follows through with the swing in the 2nd and 3rd panels? that's what he couldn't do, because Hulk's fist blocked mjolnir.
Thor usually follows through on his swings, he never pulls back as far as I'm aware. it's always the opponent who has to stop it if he can (or the floor/wall).
oh and Neferia merely dropped a building on Thor and actually neutralised Thor's dimensional opening (not a black hole - it was neither black nor "infinite gravity"😉 with it... that was Neferia's strength showing and it is .... feeble by Hulk standards.