I don't buy it either. The reality is that the people who do hiring don't understand the problems they are working on and which tech stack is appropriate. They might not understand or even like React, but they are going to pick it because they know that they can hire other people who understand it. We will end up with lots of projects in 5-10 years where people will ask "why the hell did you use React for this?" ....actually thats the reality now!