I disagree about the fact it is unfair.
Why did they changed the PVP that way (no more materia, synchronization etc.) ? The behavior of some players. The unbalanced experience between factions (Maelstrom were the favorite during ARR). The problem of balance between a stuffed player and a beginner. The lack of interest from a lot of players too.
And finaly, with the roulette change, they try to make players experiment other maps that the 24vs24vs24 because most players were going to this map or not playing PVP at all. And my guess is it doesn't work so well since they plan some changes to invite players to engage in "small scale PVP".