To comment on a post from the other thread about this:
<ever since mesmerizer blew up i can't help but notice that a lot of the new vocaloid songs coming out follow a similar formula.I was thinking about this the other day and yeah, there are a lot of vocaloid songs cut from the same cloth. The most offensive part to me is the overwhelming focus on the hook. You can have a great hook, but if the rest of the song doesn’t support it, you don’t have an emotional song at all.

And honestly the hook isn’t even good on some of these songs.
At the same time, we’ve seen waves of highly trendy vocaloid songs before. 2012 felt this way. Everyone wanted to be Jin and have a cast of OCs with a story. Half the producers sounded like Suzumu. So I think it might just be a natural consequence of boom periods that derivative work is made.
I would call the “Mesmerizer-like” or “current Mikuteto” body of work a subgenre at this point. Whether it stays or goes in a few years, who knows.