Nah. I don't think so. Whilst I could see the final evolutions being Champion level Digimon, I could also see ones from earlier generations being able to fit into that requirement. Although admittedly less so. Things are getting more complex, but I wouldn't confuse a Pokemon for a Digimon because both styles still have their own unique quirks. (Such as the eyes are drawn differently in Digimon, Digimon tend to be more technical-looking and much more obviously human whilst Pokemon are more animal-like, etc.)
But even if they were, is that really such a bad thing?
People in the Pokemon fandom seem to treat Digimon like some sort of horror story. As though it is completely inferior and that if Pokemon starts to veer in any territory resembling it, then its quality is decreasing. I don't really understand that attitude. Me, I like all sorts of monster design. Simple, complex, etc. It doesn't matter. Either one can be good if well-executed. I have no preference as long as it looks good.
Personally, what I dislike more about modern trends is how they're veering more towards a cartoony style than the previous generations. I liked that more anime, psuedo-realistic look of the earlier generations. Cartoonish ridiculousness and exaggerated proportions aren't a thing I'm a fan of. But I still like the current designs, and for the first time since Johto, I like the designs of all the final evolutions in this generation. As a matter of fact, Braixen/Delphox have become my two favorite Pokemon of all time.