Isn't that with all the products? New teams that own the legacy code base, new PMs that need to show they are doing something... That's how all software products rot. It's normal lifecycle of products that we need to accept.
It gives an opportunity for newer, simpler and faster actors to come and replace the incumbents. Complex systems are hard to maintain. Nature spent billions of years perfecting the process, we can't be expected to learn it in couple of decades.