Dunno but I would probably try it out cause using dApps isn't straight forward. I can only imagine how many more people would try this out. Convenience is worth a lot especially if you're profitting off dApps.
Well, it also helps if the idea they're tackling is a burning need, which one would think it is. Being first doesn't guarantee anything, but it doesn't hurt.
This is a web browser with W3 tools built-in. It's nothing you can't do without Chrome/Firefox + Metamask (or Coinbase's future Metamask competitor). I do think it's a good idea, because you can reduce friction and polish the UI by integrating everything, but in the long run, if crypto is successful, I really think Firefox and Chrome will just adopt all these W3 technologies natively. It will be hard to compete.
Not every "first" idea is going to succeed.