That just doesn't matter as long as they caucus in unity and vote in unity. Republicans are beholden to Trump's rhetoric so they can get the MAGA vote and keep their damn jobs. That's why they keep falling in line no matter how many times they say "no no we really shouldn't do what Trump says". They were perfectly willing to kill a bill they all agreed was good for the US because Trump said so, because not fixing the problem they've been bitching about fixing for decades will help Trump campaign on fixing the problem.

Surely they as individuals would be better off saying "look, we cowed the Biden admin into fixing the problems, look how good we are at our jobs re-elect us" but that doesn't work, because they are beholden to the MAGAs. So instead they keep giving awkward comments and going back on their own stated opinions because the only uniting strategy (which was the official Republican party policy BEFORE Trump's own progeny ran the Republican party) is to bootlick Trump.

When they vote how he says, pretty much exclusively, they are not "ignoring or shrugging off" his comments.