My personal opinion: Of course it is a feature! I can use cheap generic headphones (Blackberry headset user here) and charge at the same time. I can use the same headphones with my computer. I can also switch between phone and computer in about a second, no pairing no BS and it works reliably all the time.

I care less about the removable battery - in every phone I had I was able to change it myself, tools are cheap, the only thing you need is to watch some tutorials and calm down to have your hands steady.

Expandable storage is also great. I mean, how can it even be considered "not a feature"? You can very cheaply expand your storage - e.g. in situations you run out of storage. I don't get it, what's not to like? Honest question.