Does no one at Google HQ ever have the guts to raise their hand and bring this up? It's a meme by now.
There have been some comments on here about how career advancement optimization at Google involves hopping between projects, staying long enough to launch, and then moving on. Whereas doing good work on product maintenance or evolution is much less rewarding. True or not, it would explain a lot about how Google (as a whole) behaves towards products.
It’s made worse by internal churn. An unstaffed service will blow up pretty quickly (because someone in infra wanted to go for promo) so you either have to justify staffing a project indefinitely or kill it gracefully.