First and foremost. Neither of those anime's have stopped. It's just that people have stopped caring long ago. You see. AOT and SAO were Anime that had a viewing group of people who didn't typically watch anime. And now that the only anime they watched is still producing a new season, they simply don't give a shit anymore and continue to watch the shitty shows they were watching before (Such as Supernatural). Simply put. AOT and SAO do not have the same following as other anime's.