Have I mentioned there's this game I like to play where I check the 3M stats and see if they're within 1 goal of their last seasons pace? So let's play that again.
Frolik had 36 points last season if you leave out PP points. Before that, 31, 35 and 40. He's on pace for 34 ES/PK points this season. If he had 1 more point, he'd be on pace for 37 so for the sake of that game I'm saying yeah, he's on pace (

), and in any case he's well within his normal numbers, if a little on the low end. Also watching him, I really can't see how his offensive game has "abandoned" him to any extent.
This is what he's always been, never a guy that drives the offense, but great at supporting his linemates. Since Tkachuk and Backlund are both on pace for career years and his line is on it's regular pace, IMO he's clearly doing what he's supposed to be doing.
Of course you can't just ignore the lack of PP points, but he's been taken of the PP already. He was never a guy you'd expect to be a driving force on the PP, it's just not where his strengths lie.