Why is the "water ghost" sloth so slow that it has not yet become extinct?

Sloths are a general term for mammals, heteroarticular orders, Phiphis, and sloth suborders, which include sloths and diptychs. The shape is slightly monkey-like, the movement is slow, and the claws are often hung upside down on the branches for several hours without moving, so it is called sloth. Sloths behave oddly on the outside, as shown in the picture below
Although this sloth just crawls on the ground normally, it has aroused the discussion of netizens. Because this sloth looks like a wild man with hair all over his body and extra-long limbs. And its face is white, but it has a deep dark circle, and it also has a smiling expression, which feels like a clown in various horror movies, and can't help but make people look at the back of the back.
Even so, why did sloths not go extinct?
1, they can eat the leaves behind them without turning around due to the development of the cervical spine, which is a defensive strategy, the sloth has long green hairs behind it like the "auspicious suit" in the game, and there are various tiny creatures living on the back of the sloth. It's like a sniper wearing a "gilly suit", stealthily in a tree, turning slowly at 270 degrees plus a field of view that can be covered at 360 degrees, monitoring predators and not disturbing predators by turning their bodies.
The main reason why sloths survive is 1, lazy consume less energy, a full meal can be a long time without foraging 2, the appearance is hidden and easy to hide itself is not easy to be found by predators.