The developers were very conservative at first and GRNDL’s influence hit was a result of that.
Giving it 15 influence and 40 cards would have made it extremely powerful, though. I mean, right now it’s not playable but it used to be a tournament mainstay before I’ve had it Worse made Punitive binder fodder. Ultimately if they really wanted to help these low influence identities out they would release Jackson equivalents and Criminal Corroder alternatives but they won’t so they’ll only get worse and worse.