HTC has no incentive to go out of their way to support Valve’s new tech, because the Vive itself won’t work with the new base stations. If they made the Vive Trackers 2.0-compatible, they would just be helping other headset manufacturers (like Pimax!). Unless HTC was preparing to release a new 2.0-compatible headset themselves, which they haven’t even hinted at (in fact, they’ve been experimenting with inside-out tracking instead). Also, the pucks have been around since January, just not to consumers, while Valve didn’t announce 2.0 stations until June, and their design would have to change for the new sensors.
Don’t forget, HTC is not Valve, the Vive Trackers were HTC’s product while 2.0 tracking is Valve’s, so they weren’t designed side by side.
HTC basically admitted the things weren’t 2.0-compatible here: https://uploadvr.com/vive-trakcers-available-pre-order
‘We’ll address the 2.0 stations as they are available in market,” an HTC spokesperson wrote in an email. “2.0 is really about larger play spaces and enterprise. We’ll have more to announce for support once that tech is available, but for consumers we wanted to get Tracker into market as soon as possible.”’