Absolutely. I think Lord & Miller’s methods are what ticked off Kasdan and Kennedy, not necessarily their comedic sensibilities. That’s a whole other issue that I would argue is more process based than material based.
That being said, a Lord & Miller Flash is what I was hoping for, although I’m not convinced on the DCEU’s take on Barry (you suggested them directing a Wally movie, which is a much better fit). An L&M Plastic Man would be perfect.