I think that makes sense though—partnering with companies like Framework and HP to get the hardware right while refocusing on the software experiencing in-house doesn't mean they don't believe in the market fit for the Pixelbook or the technologies that powered it, it just means that there was enough interest externally that Google doesn't need to take on the hardware complexity/supply chain risk/etc. Partnering with other companies that are already experts in that seems better then trying to get everything right themselves from scratch
(Disclaimer: I have not been following the Pixelbook news or really even considered the device before today, but people on this forum seem to like it)