Yes I hate having all my eggs in one basket, but I am hopeful for the future of STEEM. I think it is only going to get bigger, better, brighter.]
One has to remember that Steemit is only one platform to access Steem, there is is DTube, Dsound, Busy, and APPICs sounds awesome when it arrives (and that is just a small handful of the platforms).
In my case, my success on Steemit has opened doors off Steemit, which was more than unexpected, so I'm not completely reliant on it.