From that little snippet I'd say it doesn't sound like Firefox OS was tested very well on the hardware before this phone was released. Which is a real shame since one of the main differentiators I've been reading about is how much better it run on low-end devices than android.
If I were Mozilla I'd think about finding another selling point. Maybe they should rethink the product. I remember when they were first talking about it, it was going to be able to get around the carrier/OEM update problem that Android has using their layered software architecture. That fell through quickly after launch and now not only is OS not being updated and the browser isn't either. Meanwhile, Android is slowly fixing it's update problem and have already worked around it by putting much of the updates into the Play Services API's.
I thought the best selling point of FFOS was going to be branding control as it was originally going to be a white label product with only the code name Boot2Gecko and let all the branding be handled by manufacturers. But it looks like Mozilla gave up on that strategy. I'm guessing because carriers or manufacturers demanded a brand to sell.
I think a workable strategy for Mozilla would be to build a good App Store for Android using their FFOS runtime/API's. Really pour over the user experience. Make fans of the users. Then work with phone manufacturers and carriers on bundling it.