>>53207131I don't think people care as strongly about that and to be honest none of the Pokémon look human, this isn't Digimon. But when you look at the data it doesn't appear to be a decisive factor. This is best seen with the eeveelutions and their high level of sexualizition and how open people are about wanting to smash them. In a Pokémon context it doesn't seem to play as big of a role as some people make it out to be.
Another good example is Meloetta. PokeSmash becomes more useful if we divide the data by region since later regions have much less of a difference in vote count, it's not as extreme as Gen I having a difference of over 200k+ votes from Gen 8. For my example I'll be using Zoroark and Meloetta who are both in the same gen and their vote difference is only 6k votes out of a sample size of 200k.
Meloetta has a 63% smash rate while Zoroark has a 73% smash rate, even if you gave Meloetta 6k smash votes, which is the gap in total votes between the two, it still wouldn't make a difference. Now 10% isn't a big gap but it does show that looking "human" isn't the biggest factor here. It didn't seem to matter much to the 200k people who voted. Of course the other factor is sexualization which Zoroark beats Meloetta in spades. Meloetta only gets something like less than 20 pictures per month while Zoroark gets hundreds of NSFW art made per month.