They say the burn-in issue is "largely addressed" and link to an article about OLED monitor manufacturers offering a 2-year OLED warranty (3 year in the case of MSI).
That's pathetic, especially for how much OLED monitors cost. Quality monitors are a costly investment and I use mine for so much longer than 2-3 years. OLED burn-in is not "largely addressed" and is still a significant concern when deciding if I want to drop a grand on a monitor.
It's cool, you just have to drop a grand every year or two to enjoy that gorgeous screen. Think of it like a subscription to a 15% prettier screen for only 5x the price over 10 years.