Maybe they shouldn't have added the Pocket links if they didn't want the vitriol. Tracking or not (I'm still not 100% convinced that they're not), it doesn't look good when your browser greets you with that stuff. It's like entering a neighborhood and seeing a "checks cashed" store.
If those people seriously switched to Chrome just cause of Pocket, which I doubt, then sure. Otherwise, we're allowed to complain about a bad feature in the browser we use. Maybe the problem is people treating Firefox like a religion instead of just a better alternative to Chrome.
