Sorry, pal. PvP is a valid part of the open-mode game. Nothing is "favoured" by the mechanics or rules just because one activity happens to be done more than the other.
Well when you start talking about the "spirit of the game" and the "spirit of the community", surely you're talking about the actions done most, or the most common types of groups.
While PvP is most certainly valid and for some the only reason they play. I'd agree with the CEO of Frontier in saying ED is more about co-op play.
So people playing Open and mass blocking PvP'ers, would be well within the "spirit of the community" as the majority want friendly, co-op encounters.
As shown by the largest single community group having a no PvP policy.
To that end, of course, I'd also argue people wanting PvE to go and play in one of the Mobius Groups until such time FDev make an Open PvE group (highly doubt this, but I can hope).
Not only would it be easier and quicker to join a Mobius Group than trying to block a lot of names manually. But part of the reason we have the modes is so people can use them to craft that personal experience they want with whatever type of player they are looking to play with.