Toy commercial is right - there’s so much emphasis put on their mechs and their transformations that it feels like an ad break every time they get in. And they all have variations too like when they’re in the jungle or the ocean, so that there are more toys to sell of course.

And I’m confident that Zuma and Skye were added as vehicles first and characters second because those two never do or say anything (Skye is the obligatory girl character and is girly, but Zuma the water rescue dog has 0 character traits).