Sam, Sam
Try and think straight for a minute. Your analogy is absurd. His statement was about not availing oneself of a kula, NOT ABOUT REFRAINING FROM A POSITIVE MITZVAH.
The correct analogy would be something like: Of course there are poskim who allow us to build Lego towers on Shabbos, but is that really what Hashem wants of us?
No theological lines have been crossed.
Only the line of Derech eretz, in calling an erliche Yid akin to an apikorus.