"I hate when services actually tell people about new features they're offering"
Pushing people to use it (no I'm not going to buy youtube TV or whatever its called, stop asking youtube) is one thing, but simply proffered the option is relatively benign.
They're pushing it to everyone's feed, it's basically advertising. They could "tell people about new features" via press release they don't need to do this.
The exact same number as need to know about color filtering YouTube videos. It's not a meaningful feature, it's fine if nobody hears about it except through clicking around or word of mouth.