Before I go on, I'd like to say it's awesome that you are phrasing your complaints articulately and clearly. This is something few people do, so it's nice to see even though I disagree with your premise.

Quote Originally Posted by Olor View Post
It will probably be five minutes.

And a lot of the time the only way I can get an invite to anything worth getting invited to as a bst is as ghetto TH with dipper yuly, which has stacks usually running on my server for 100K.

For some people that may be pocket change, but as someone who just rerolled a few months ago, I can't afford to be constantly bleeding gil in the course of my ordinary duties.
Yeah, that's roughly what Dipper Yuly costs on Phoenix as well. I think the mistake you're making is connecting this job ability directly to Dipper Yuly. He's mainly used for soloing things or providing Treasure Hunter, and this job ability isn't for either of those purposes.

Your assessment of how it will affect you and the play-style you are presently forced into isn't wrong, but I do think it's a very narrow view of things.

Quote Originally Posted by Olor View Post
Also, the question has to be asked - why is it necessary to consume the jug pet? I mean seriously - if this was just damage boosting, I wouldn't have a problem with it. But it isn't like crafters aren't already making a mint off of bsts.
Since the dawn of FFXI, almost every job ability that does damage has had a drawback.

Berserk and Last Resort lower defense, which isn't a penalty but some guy at SE probably thought it was a decade ago.

Innin requires you to be positioned behind the monster, lowers your evasion, and it's potency decreases with time.

Sneak Attack and Trick Attack don't have a penalty in the literal sense, but require certain timing and positioning.

So yeah, it's old hat for an ability that adds damage to have a penalty or condition attached.