IMO Ver is very suspicious. Let's not forget the time that he was betting on Mt.Gox solvency. In addition to trying to get as much traffic to his website as possible (even spam advertising here) he's trying to make a push to whatever "implementation" possible (as long as it is not Core). I'm not going to trust this letter unless there is a official statement on the website or somewhere aside of a forum. Even if this is authentic it doesn't matter much. Just because he's the CEO of KNC Miner that does not mean that he knows anything related to the block size problem.
Maybe raising it slowly is easier to implement and causes less disturbances instead of raising it all at once....
Bump to 1.5MB and SegWit? Why not.
1mb, 2mb, 4mb blocks? It's all a laugh!
The capacity of a floppy in one Block, well bright boys that's the future

Illusion of knowledge, as present among many members here and on reddit, is our main enemy (that's being exploited by charlatans).