Shane Lowry - Lead arm only?

A close up of Shane Lowry's swing reveals that his trail hand is off the club during his downswing. Other golfers who do this are Kevin Stadler and Brian Gay. If you have a trail arm that wants to take over your swing you have two options to solve it. Swing more with the lead arm, or train the trail arm to be near perfect.

Do you think the right hand off after impact drill is good? This was an old Golf Digest Jim Flick drill. Every once in a while I let go with my left hand at around impact and just finish with my right hand. This is opposite of what many tour players seem to do finishing with the left hand only on the club.
Any root cause to letting go with the left hand in this manner?
Thanks

I don't mind the right hand off the club drill. It's probably in the same family as the open right hand and shadow drills that I use frequently. I've actually never seen a golfer let go with the lead hand. If you have a video of it, I'd love to see it for discussion. Post it below!

Thanks
It doesn’t happen that frequently so its hard to capture but If I do I will.
I think I grip too loosely with the left hand possibly from when I fractured my radial head in my left arm and maybe played very right sided.

Thanks. I'm sorry to hear about your injury. But yes, if you do get a clip, I'd love to see it :)