It's not surprising. Remington built quality guns, but hasn't really built a gamechanger since the 700 came out 60 years ago. Quality of the old stand by models, the 700, 870, and 1100 has steadily declined over the past couple of decades. Think about how often someone says "Buy an old one. They were made better." If a guy goes looking for an "old one" they aren't hard to find since they made millions. There hasn't been a lot of incentive for people to buy a new Remington with its quality declining and the competition now making better guns.
I'm afraid I'm going to have to respectfully disagree with you on some of these point. I literally own Remingtons made from 1917-present, I also have access to at least a dozen Remington rifles and shotguns made from 2010 onward, through close shooting buddies. Add onto the top of that, I'm also a tool maker and hobby gunsmith and gun builder. Of the 6 Remingtons I own that were made over the past 15 years, not a single one of them has given me a single issue. Nor do I know of anyone personally that has seemed to get a lemon, but it seems to be a persistent internet topic always with reference to the anti-gun hit piece over the triggers. Now I will say that the current offerings are not as pretty as those of the past, but mechanically they are much tighter now.
Now y'all have gotten me in the mood to go fondle my 1991 ADL in .30-06 (the first rifle I bought for myself)