But having 100% of the pixels is not advertised either. I hate this approach, but this is the approach companies taking

Yeah but consumer products most of the time are not in the class I.

It’s like with CPU silicon lottery. Some could be Overclocked very high, but some can’t. If you want guaranteed bigger speed buy the higher grade product.

According to the ISO standard, it needs more than 1 pixel to be considered faulty screen. Some companies do replace it, but others don’t because they don’t have to.