Take a look at link, for example. It got into first place on the gainer list with the hashgraph integration news. That they didn't really tweet about. Just an article, that's all. As if they didn't want the hype.
So to me accessing through a browser is less secure. Not saying it's not secure, just less secure. The Mist wallet is pretty interesting as it can interact with smart contracts NOT through a browser .. or at least as much as my learning has come so far