Without getting into the reductive "Do you work for a competitor to Apple" counter-argument, I also don't have any trouble scrolling with a Apple TV remote.
It's possible for people to have different experiences or standards without being paid trolls, but I guess I'm graciously assuming you're not a paid troll. Which, by the way, is the rule around here: be gracious.
It's not great for long lists but it's far from being terrible, also part of the problem lies on the UI design for example having too long lists