No this is a very interesting and necessary thread. It does not only tell Pimax what games are gonna be played the most on the 8K, but also what games they should use as a reference to improve the performance further.
Note that this is definitely not a "let us know what games we should try to make work on the 8K" thread, and if you do worry it may be about poor compatibility, then stop doing so!
The Pimax team is working VERY hard to improve the performance in games, and I can tell you they have made HUGE accomplishments since beta phase started.
The beta testing phase is not delayed because one or two specific games needs to work. Its because the testers and the Pimax technicians wants you to be able to play the games as smooth as possible - with as good image quality as possible. And you will be thankful for that later on.