Since this reduces supply, it's actually bullish.
In a purely abstract sense, yes, this is true. In the more subjective, yet more impactful sense, this will scare the crap out of people. There are other platforms on which one can launch ICOs, and there are other blockchains in the words with smart contract functionality. Shit like the (multiple!) parity wallet bugs will drive people to other blockchains. Fast. And THAT my friends is bearish.