Surely, SBD being pegged to 1$ would most likely benefit the eco-system in the long run. Of course, if we are to talk about short-term effects, a lot of people would lose faith in this platform, because many wouldn't be earning much of anything at all. We can already see how little most people earn at these prices. The huge rewards were really nice for everyone. Now, it's really struggling to earn even at least 5-10$ every day.
I'm not an expert and I can't say what's best for the eco-system, but I know there's pros and cons with SBD price going up or being pegged to 1$.