that means that this segwit2x fork will activate only if miners built a block with more than 1mb? And if not the network will be stall until this happen? lol
What a crap is this

A big crap. One that I'm sure will create lots of confidence in this 40 billion dollar economy.
Well, it could be a way out of segwit2x - because there won't be too many folks who are going to want to run segwit2x if it is having difficulties passing through test phases, no? On the brighter side, testnet is supposed to help to find bugs, and might they be able to fix the bugs in an expedited way?