Yes there is color fringing if I take a zoomed in picture with my camera, but nothing I notice in day to day use. And I've been highly annoyed by missing or bad ClearType rendering.
I specifically went for the 27" to get the extra pixel density though. I might not have been happy with the 32" variant.
That said, the true blacks and bright whites is something else. For me a very significant upgrade both on the desktop and in games, despite the previous being an upper-level LCD when I bought it 4-5 years ago.
If I had to guess it could be something in the manufacturing process is more difficult.
I remember getting one of the early Samsung OLED PenTile displays, and despite the display having a higher resolution on-paper than the display on the LCD phone I replaced it with, the fuzzy fringey text made it far less readable in practice. There were other issues with that phone so I was happy to resell it and go back to my previous one.
There's RGB subpixel AMOLEDs as well (such as on the Nintendo Switch OLED) even though they aren't necessarily RGB strip. As in, just because it's not RGB strip doesn't mean it's pentile. There are other arrangements. Those other arrangements being for example the ones complained about on current desktop OLED monitors like the one in the article. It's not pentile causing problems since it's not pentile at all.
PenTile for example (as another commenter pointed out) was woeful with text, and made things look fuzzy.
I'm not a fan of ClearType, but even on Linux OLED text rendering just isn't as good in my experience (at normal desktop monitor DPI)
Perhaps its down to the algorithms most OSes use instead of just ClearType, but why hasn't it been solved by this point even outside Windows?
The PPI difference matters though (and I think why my Nokia N9's PenTile OLED looked rough). Desktop displays simply aren't at the same PPI/resolution density, which is why they're moving to this new technology.
If it didn't matter, I highly doubt they'd spend the huge money to develop it.
I'd say that because the article documents my experience at this point in time, the only poor timing is when my old-ish monitor died and I went looking for a replacement. And this article documents my experience with that.