Nope. just that Spectacular did a great job of building Peter and Gwen and why she'd be so hard for MJ to live up to (which is how she felt) that NOT killing her off would have taken away too many story points. The moment with Gwen and Peter there was pure, and love. The kind of perfect which was how she and Peter were perceived. The idea is that they work together so well that you couldn't see any reason why they wouldn't be together. They have perfect moments that don't get topped as long as she's still there, because the moments with Peter are as beautiful as they are. It's why something happens to her in the first place. It's why Mary Jane whom comes afterwards is confirmed to feel initially inadequate to the memory of Gwen. They executed this characterization of Peter and Gwen being perfect for each other very well in the ASM movies. That's the point.
May be controversial, but imo Gwen Stacy
has to die for MJ and Peter to be together.
Gwen is the reason MJ became the kind of person she is today, why she put away the party girl lifestyle that Peter thought less of her with.
Gwen is the reason MJ decided to become a formidable foe when she decided she wanted to be in a relationship with Spider-Man. So it wouldn't happen to her.
Gwen is the reason MJ even stayed and decided to comfort Peter despite the fact he was very rude and cross with her while he dealt with his loss.
Gwen is perfect in MJ's words, and she doubts she'd ever have had a chance with Peter if she'd never died. She's right, in many aspects. BUT it also leads into her having to "live up to a dead girl" and all that came with that and the insecurities she dealt with on top of all that.
NOT killing Gwen Stacy despite how great they built her up as that person that was everything Mary Jane said she was(and then some, fleshing her out even further) takes away a lot of the motivation behind MJ's change of character, as well as Peter in general.
Them pairing MJ with Peter is fine, but they were going to try to have their cake and eat it to without the tragedy of Gwen Stacy, it takes a lot away from both MJs and Peter's motivations that eventually lead to them getting together. Those little moments like that between Gwen and Peter is why MJ would think they were "perfect" for each other, and what she'd have to live up to.
They built up Gwen too well for them to them put MJ and Peter together
WITHOUT something happening to her. You don't just take so much away from Peter but you take it away from MJ too and one of the major things that both changed and bonded them together in the first place.
Just my two cents on the matter though.