No; I do not agree.
In my opinion, it's completely fine to use jQuery; not embarrassing at all.
It is the same as saying "why are you driving Toyota Prius (as an example) when there is Tesla (for an example) or maybe Ferrari"
Every project has needs and it is useless to overengineer projects just for the sake of doing it.
If I don't need to use React; I won't; I might get the things to get done with jQuery.
If I don't need to use jQuery; I won't; I might get it done with vanilla JS 😎.
P.S. In fact, I write about the tutorials without Framework in mind but the problem in Mind. Check them out at time2hack.com