I'm against an invincibility. That would also be against the intention of the hunt content. Of course it's annoying if you miss a hunt. But it cannot be the solution to try to force rule changes just because of that.

In my opinion the vast majority of "hunters" (A or S ranks) isn't really there for the content but just and solely for the rewards. The content itself doesn't really matter to them. I myself therefore think a lot of such "suggestions" could also be seen as selfish and that they are only made so that first and foremost the person who made the "suggestion" is the one who profits. Everyone else doesn't matter. Because they think they are entitled to get to every hunt. And it is too easy of an excuse to justify that with the statement that it would not just benefit them but all people. It is clear that of course everyone else who feels entitled will benefit from this. And because the majority feels entitled to the rewards and would try everything to get what they feel entitled to they of course would agree with that "suggestion".

Also, in my opinion the introduction of cross world traveling was the worst that could happen to the hunt content.