What leaves me curious is what's to happen of the Vive hardware line that Valve sells made by HTC.
I think OPs point was, even if HTC stops manufacturing Vive there will be Vive quality or better headsets that use Lighthouse tracking, which along with the upcoming knuckle controllers and vive trackers are the real competitive advantage Vive has over Rift or Microsoft MR headsets in PC VR.
Most likely its the only profitable part of HTC and is mostly safe from anything negative this acquisition might bring.