I get a Red day after everyone of these. I’m not too bothered though because the feature is actually making me take more rest than I was doing previously and as a result I’m feeling a lot better and stronger when I’m on the bike. And i’ve stopped having legs that permenantly ache/hurt.
I did a 4 hour gravel ride yesterday and didn’t get as much as a yellow day.
Based on what you posted, it would seem that you have a relatively light training schedule normally, so when you pop out the odd long day, the system is gonna give you a heads up for the next day. Sounds like it is doing what it is supposed to do.
Quite possibly it is and that is why I’m following it’s advice despite the little reservations at the back of my mind.