If they enable DisplayPort out put on Pixels they will catch fire or even explode because they have a poor thermal management and a chronic overheating problem

8 years to not-remove a part of the spec AOSP supports natively.
8 freaking years to develop a solution for native video-out that isn’t the confusing, low-quality, barely recognized DisplayLink.
8 goddamn years to admit to themselves that Chromecast mirroring is a dog shit alternative to DP-AltMode.

But 8 years hopefully come to an end.