Some years ago, 3 of us picked React for a startup. I consider it the single biggest mistake in my career, but we picked it not for the reason you mention. We didn't think that far (I was perhaps a junior, but the others weren't). It was just a matter of picking the frontend framework that we liked the best (I think the options were between Backbone, Ember, AngularJS, React). In our minds we did pick the simple option.

Some may be aware, but certainly not everyone.