I didn't vote because I am not sure how to answer.
Filibustering absolutely should be allowed. It is a vital tool to protect the minority from the tyranny of the majority. If the minority strongly believes in something, they should be able to work together to require a super majority in order to pass something.
So in that way I vote yes.
However, filibustering used to be kind of taking advantage of a technicality, the fact that congressmen were allowed as much floor time as they wanted to talk about a bill. So this would require them actually actively doing something, for a long time, to block the bill. At some point, they decided that simply filing an intent to filibuster was enough to actually filibuster something and so they no longer have to actively do anything, making it incredibly easy to filibuster and requiring nothing more than a signature from 1 congressman to invoke all kinds of nonsense.
So, in that way, I vote No, because the rules have to change.