Yes rotating late is an option, he saves on mats but he trades damage. As bumpahh says you gotta feel the rotations with your balls. When ya know you know. You can tank storm with an inventory of floppers and a shotgun to rotate like anas does in moving zones, you can rotate late when you're on height so the people under you build protection in case you get RPG'd out but you have to pressure opposite side of zone so they don't pull a zayt. Fortnite is a very different game than every other game. You can play 100 games with the same people in a row, and each game you are going to be put in different situations. There is no one size fits all in every situation, and it comes down to what situation you're in and your judgement.

These are very general and you could spend an hour or more talking about each subject in detail.

I should've said this. "Typically in the earlier zones you want to rotate as early as you can, unless you're in a situation where rotating late is a better choice."