We live in a society where people who use "diversity" as a buzzword are actively promoting policies that discourage diversity of thought and demand conformance. "Standards" dictated from on high are the bane of creative exploration.
At the same time, many "creative" ideas are actually just really stupid ideas. It's to be expected that the person with the stupid idea will accuse his critics of stifling his "creativity". That doesn't mean they're wrong.
I think a lot of cultures (including much of startup culture) place too much emphasis on ideas. So many creative ideas really are stupid ideas.
However, that doesn't mean creativity should be criticized--it just means we need to teach people to do more than have ideas. Creativity comes into play when problem solving, and determining whether ideas are worthwhile, too.
At the same time, many "creative" ideas are actually just really stupid ideas. It's to be expected that the person with the stupid idea will accuse his critics of stifling his "creativity". That doesn't mean they're wrong.