Well it was added recently, during the same time as things like pocket and hello are being added. A lot of people will never use it, so it's fair for them to put it in the same bloatware category. I use it a lot on mobile, not so much on desktop. I didn't want to disable it.

I'm not the biggest fan of hello in firefox, but I've gotten some light mileage out of it, so I guess I can't be too upset. Pocket though just really shouldn't be in the browser.