Again, it is a perception of it isn't it? How many coins have failed claiming this or that? Steem's advantage at the moment is that it has proven its capabilities and still has a lot of room to scale and encourages holding. Even if prices fluctuate, it is hard for all to panic as a significant amount is locked in SP. This also protects somewhat against weak hands.
Lots of exciting times ahead for crypto.
You're right, it's all about perception. But if the developpers want to broaden the uses of Steem as a currency, they have to change it's name so that it won't constantly get linked to the platform. A small change, but a necessary one if we want to "branch out"
Not necessarily. If anything we need to see more Steem-[x] names covering different applications of the technology.
Steemit is merely the predominant use case as of now - and since its being superceded by more forward-thinking and adaptable competitors is merely a matter of time - its imperative that Steem finds another workhorse to carry its value.