Do we have to point our miners to another pool on the 16th of April or could we just leave them with the same settings?

There is one point I don't really understand..

You're saying Segwit is a complicated solution to a problem that doesn't need to be solved..

Isn't it true that the confirmation times are now ridiculously high? You're saying BTC doesn't need to update in order to solve that?

Thanks for this elaborate explanation Chris!