Yes, there were a few people who were force sensitive left in the Disney canon, meanwhile in the classic eu, there was a new Jedi order with a variety of new characters and the next generation of Skywalkers and Solos.

Exactly, Ahsoka Tano is an example of a great force user who hasn’t come from any ‘family dynasty’. She is her own being.

Edit: I wouldn’t necessarily call the Skywalkers a ‘family dynasty’. They obviously aren’t the only family who happens to be strong in the force?? Sorry I’m trying to understand this point?

It’s just some of the concepts in tlj that were marketed as new and different have been already introduced in the original saga, KOTOR, Clone Wars, Jedi Fallen Order, etc. so it’s kind of redundant.