Is it a weapon to deny someone the Eucharist?
Yes, in a sense because it cuts someone off from something.
Yet, is that a problem?
No, if it is to save their soul.
Yes, if it is to simply make some politician win and only for that point.
Even St. Paul rebukes people and tells them that the eat judgment upon themselves. (cf. 1 Cor Ch. 11.)
Now its my turn to Weaponize The Eucharist to prove Vatican II’s worth by linking to a previous post listing all the places Vatican II talks about the Eucharist. It shows just how traditional and faithful the council really was.