I agree with you, in the last 2-3 weeks MPH software had some bugs, maybe there is some work in progress migrating/enhancing the pool.
But I also think that a pool admin has the right to sleep too.

It's ok for me if he doesn't answer H24.
I'm sure he will try his best to fix it soon.
at least we know that everything end up ok eventually...
But, considering the size of these pools, there should be someone H24.