Maybe. But I'm not convinced. Isekai is so widrspread these days it may as well be the default genre, it can't be called novel anymore. Any novelty would have to be found in the particular way they do it, e.g. reborn as a virus or reborn as a vending machine.

And I disagree that it competes with 50 years old anime. Most people don't tend to watch old stuff, which they feel is stuffy and outdated. The story and writing could be great, but the pacing is different from modern standards, and the visuals can sometimes feel awful. I argue that only a very select group of people is interested in watching and revering old stuff.

This is why reboots work.