I believe you shouldn't base your opinion on problems highlighted in this type of forum, because it's problem solving that is discussed at length (and you probably arrived in the forum just when this one was being discussed). Those that don't have the problem, probably the majority, will not say so, unless someone organizes a poll!

Moreover, the video is impressive but misguiding, because a lot of elements are moving around at the same time, with the wheels flexing most, but also the seat post, so you can't really see how much the rear triangle flexes comparatively.

I tried to flex my rear triangle holding the rear axle and pressing my knee in the linkage area. There is some flex, but not more than on my Altitude. Comparatively the wheel flexes much more, and that will have more influence on how the bike handles when you tilt it.

I don't have much of an opinion yet, that's why I'm asking. And when it comes to problem solving it definitely would help if one can order parts for the frame. Don't agree that the wheel seems to be flexing more in that video though.
And you shouldn't assume things either. I've read here since this frame came out, where else would I get any info or get opinions?
Wouldn't it be nice if there where spare parts available to order?

Good to hear you haven't got that problem though