I would generally agree with that as far as him being a placeholder (like Susan Collins in Maine) - but Hogan is and has been just totally over the top to go out of his way to attack the GOP and would do far more damage than good. Collins doesn’t go along with us a lot and criticizes other Republicans but it isn’t like what Hogan does.
Hogan would be more like Liz Cheney, an useful idiot. Collins is a RINO but I haven’t heard her of being an useful idiot unlike Cheney or Adam Kinzinger (who may be trying to get a job at CNN or MSNBC as a “token conservative”)