If that is the real reason to the bst nerf - which I really doubt - there has been suggestions made on how to ease the congestion on certain mobs at certain times of the Vana'diel day in dynamis. And bst isn't the only job that's been nerfed.
Oh, so if people stop doing voidwatch that'll solve the whole issue? I think not. Besides voidwatch isn't a bad event at all, and for a lot of people all SE had to do was to stop the same ra/ex item loading in someone's chest if they already have it.Sure the reward system on LW is entirely Square's fault, but who are the ones who keep on plugging away at it in hopes that they might just might 'get lucky'? Your fellow players.
You're contradicting yourself as far as empyrean trials go. In your words, people should stop doing voidwatch hoping to get lucky drop wise. But to be able to finish a level 95 and level 99 empyrean weapon, you actually need for people to do that exact event. As for relic trial - before people knew about the level 99 relic trial, he was barely being killed because it's too much of a hassle for pretty shitty drops.If you can get people interested in going to the events then there's no reason why you can't get it done. But who was it that lost interest in the events and abandoned those events in the first place? Your fellow players.