Well it is a "what if" that can't be proved one way or the other and I suppose you are right in that power sharing as such probably wouldn't have come about but peace and normal democracy may have come much sooner. The Civil Rights movement brought the issue of discrimination to the wider UK public as a whole - just as it had in the US with their black Civil Rights movement. There is at least an argument to say that the descent into violence hampered things rather than help things.