I hope you wrong also but I have to say I am not surprised.
From all the evidence thats out in the public, it looked quite clear to me that the cost of adding vectoring to ECI is significantly more than is to the huawei cabinets. Also I did observe that when it first got into the public openreach were testing vectoring, they ceased ECI rollout, that to me was a big alarm bell.
So if you are right it looks like we may be heading to a 2 tier service, which will upset alot of people on forums although maybe not so much the average user who wont even know what vectoring is.
I just find it hard to see openreach would rip out the entire dslam within 2-3 years of installing it, I dont think the shareholders would approve such a move, but I really hope we both wrong.