There's really just a large number of Nintendo fans who are unable to separate out a technical, objective comparison from the device being fun, or "good."
The screen can be really poor compared to other screens, but still look good.
Ever get a $50 pair of headphones or a bluetooth speaker? They are flooded with people saying how great they sound, better than $200 ones they've had before. And yet, if they were to be reviewed by audiophiles on a technical review of specs, yeah, they're going to fail miserably compared to $20,000 speakers, or $900 headphones. Doesn't mean the $50 speaker can't be incredible sounding, despite it being shit compared to "better" speakers.
It's just like sound bars. People with expensive speakers will stop at nothing to tell you how shitty sound bars are, and yet, tons of people who have Sonos Arcs swear by how great they sound.
This is simply a technical look at the screen, it doesn't mean if it fails on certain technical aspects it's unusable. Like the HDR sucks on this screen, and I'd never want to showcase any HDR content with it, but that doesn't mean the screen itself is terrible either.
This right here is what I'm talking about, Nintendo fans unable to accept something can be subpar on a technical level, which this is, and still be seen as good.