You're basing that on pure speculation so be careful what conclusions you're drawing from it. Chromebooks have historically gotten very good support, even though they tended to be relatively underpowered - the pixelbook isn't so I wouldn't expect support to stop anytime soon.
I don't know if it counts as speculation when a number of outlets are reporting on 'roadmap cutbacks,' including asking employees in the Pixel group to look for other roles. [1]
Is it 100% confirmed? No, but that's part of the brand trust referenced in the original post: where there's smoke, there is probably fire, and it would be beneficial to brand trust if Google provided a longer-term roadmap for these products.
Before someone comments "Why doesn't Apple need that type of roadmap?": because Apple has the hardware brand trust that, say, the iPhone isn't going to go away next year simply because the engineers working on it wanted to create an iMessage competitor.
The entire point of the original article is that Google's constant killing of products makes everyone fear what will be next, bc even seemingly popular products get killed off for little to no reason. The entire point of this article is that Google's own actions are fanning the flames of this speculation.
