ok lucky me after spending 2 days understanding the program and typing out my opinion, that they just abrupted ended their challenge.
I am actually relieved because I was on the fence and really do not want to shove 100hr of flying in Y for some miles that may be useful, but it may be quite nice and I could make a video out of it. This just shows how bad faith TK is, next they will change the expiration policy, or say the 1MM miles cannot book saver awards or partner awards, who knows. I will stop planning now and finally go outside. Dobbie is free!