Max would've still come off as pathetic and a wimp being chastised by his mother, but it would've helped with developing his character more. Heck, even coming back home and frying her would've been an awesome, horrific scene that would've shown how physically and mentally damaged he has become as Electro.
I think the deleted scenes will be getting though are probably going to be "Isn't that the question of the day?", "Secrets have a cost too", maybe an extended conversation with Norman Osborn, and maybe Green Goblin attacking Oscorp board members, but I wouldn't expect a longer and more violent alternate take on the Death of Gwen Stacy.