I would like to believe that they are simply pragmatic 
Is the world really turning into a good one?
Here's another block (although it doesn't answer the question as to why they are signalling so many things; maybe they just support all of those): Is the world really turning into a good one?
Anyway, good news, I think. As F2Pool is a very strong pool, they alone can bring Segwit signalling near 50% - and even some Unlimited supporters (Roger Ver) have stated that they would support it once it achieved support by the majority.
We shall see whether Ver is a man of his word or not. It is clear that the supermajority of users, experts, and companies (economy) are in favor of Segwit and/or against BU.Personally, I am more inclined towards SegWit than BU. And there is now a mounting consensus that it might really be SegWit that will take the prize for now though we don't know what will the future brings as this will not be the first that a problem can occur on Bitcoin as it continues to evolved and get into the mainstream. I am one of the many who are afraid of the BU scenario lol. Hope this thing can get resolved soon for the best interest of all stakeholders.