I'm more of the principle that what doesn't kill the ETH network, makes it stronger. Vulnerabilities or not, if the team of developers is there to fix and make things better depending on what issues arise in time, that's some real value long term.
Exactly, this highlighted the need for scalability to be a high priority and while it already was it might give the developers further encouragement to come up with a truly infinitely scalable solution that will enable ETH to be the leader in the cryptomarket. Issues are only a problem for as long as they remain issues.