None of these things indict React itself, just history and explanation of its rise to popularity.
Actually if something is easy to get into and easy to use, that is a big indicator that it will be popular and useful. And if a lot of those who get on board React do not need to learn much more past behind it to manipulate entire frontend, that's a stellar endorsement of React to start with.
Being easy to get into, easy to use, easy to maintain are critically important traits that are needed in every aspect of software.