Disagree.
Ukraine has said from day 1 no American weapons beyond the border because they respect the caution and don't want to jeopardize the support. They already have domestic weapons they can use for attacks deep within Russia. To my knowledge this principle has never been broken and Zelenskyy and his staff maintain it never will be. It's the smart move, and from a disciplined ally, I have no reason to question it.
Besides, we can and do put software restrictions on what can be targeted with some of our toys. Germans are doing the same for Taurus I think I read.