Yes, the performance part there is not description what was tested, only he did use for "6-7 hours". This article it is written with a heavy bias in mind
It's Dedoimedo. The entire point of Dedoimedo is whining loudly about whatever gets reviewed. If he stopped complaining about things his audience paid him to complain about, they would stop paying him enough money for overpriced vehicles that he then could complain about in an overly-braggadocios manner.
Especially for "display clarity." I smell confirmation bias here. Higher latency across two machines is hard to swallow but, sure, maybe they do have hardware where Wayland is broken.