nobody gets praised for shooting down other people's ideas or saying "lets do less". Everybody has their own pet idea that will surely bring in a bunch of money so more and more stuff just gets added to the list
At my last company, this was so common and painful that towards the end of my tenure we started using a “No” roadmap, which was a list of things we would explicitly not do. Shooting down an idea is hard but sometimes people would go around and try to get a team working on it anyway as hidden work.