Still. It's like saying that you need to own both a DEWALT and a Bostitch drill because they are just different enough when working on dry wall in colonials vs capes. I mean I am sure there is someone out there that uses Vue for odd projects and React for even ones (and Angular for every 13th one that they start on a date that ends in a 5), but most developers I know try both, then stick to the one that they like best.