Everything else is biased and mostly wrong. In terms of performance, recent versions of react with Fiber can achieve figures vue can only dream of.
The conditional in react is just pure JS. He could have written an if statement instead of the anti pattern use of && for a non Boolean expression. And arguing that the v-if followed by code in a string is simpler sounds dishonest to me. Or we don’t have the same frame of reference.
The main problem to me is that the author compares his experience with react in 2015 with his experience in Vue in 2018.