Why does battle high exist?

[Avenger]

I don't really get PvP in Duty Finder or Roulette. Usually there is no communication, coordination, or strategy of any kind. Everyone usually just splits up quickly and then runs around randomly, ignoring the objectives, fighting pointlessly, and dying. On our data center, Maelstrom seems slightly more coordinated, but I don't really know why that should be. Flames seem to avoid any strategy and ignore objectives usually, but I don't really know why that should be either.

The random selection of jobs doesn't seem to help; I've seen games where there is a single healer for the entire alliance.

Battle high may make things worse; it seems to make it easier for one team to steamroll another. But the root problem seems to be that PvP is usually just stupid and pointless, and there doesn't seem to be any system to help teams work together effectively, or to help players who want to learn how to play PvP learn to do so, or to help people improve, etc..

It's annoying and frustrating and really not much fun. I don't really see it improving either, as it was just as bad in ARR, Heavensward, and Stormblood.