Another thing I noticed is that in Dinotrux we never had one thing that is continuously happening in MLP, villains that become friends with main characters/protagonists.
Starting with Nightmare Moon, over Discord, Starlight Glimmer, Sunset Shimmer, then Tempest Shadow in MPL The Movie etc. We had exceptions like Chrysalis, but most of the baddies changed at the end.

While in Dinotrux:

Splitter - Friendship offered once at the beginning, then he's beaten up and his saws jammed and then they offered him friendship again. Can you really blame him for refusing?

Blayde - First impression: She's threatened. After that, she kidnaps George, Trux bust into her cave wanting to take her off-guard and defeat her. After that failed they fooled her and scared off her herd. After that she's threatened by good ol' numbers and invited into 7 on 1 fight. This time they didn't even bother to offer burying the ax, they did complete opposite of that. Surprised she wanted revenge? Yeah, me neither.

Pounder - Ok, I can't really blame them, Pounder isn't intelligent creature with which you can exactly reason. But I guess that gives D-Structs some extra points for getting this thing on his team, I am still impressed by that!

And finally, I saved the best for last:

D-Structs:

Looking back to episode "Ty and Revvit":

Ty came on his land, impertinently requesting to use all the resources of his crater while giving nothing in return. Naturally, D-Structs dueled him and even after he won, T-Trux had enough nerve to stay in his territory, abusing the mercy D-Structs showed him by not dismantling him immediately, which he could've done!
Crude T-Trux then turned other Trux against D-Structs, practically proclaiming war between them from that moment until one side is defeated.

I think there is enough material to defend D-Structs only in this episode. Not to mention further provocations in form of ridding him of his tail that took it on a much more personal level.

I am not saying turning enemies into friends is impossible in Dinotrux, because it isn't, but the way their world works, the cruelty and actions of the protagonists are making it impossible for bad guys to ever consider befriending them.