Weapon drops will need to be adjusted for new jobs/classes

[Tiggy]

Your hypothetical 15 is first and foremost such a large number of job increases that it will be years before we see it. So right out of the gate I can tell you that worrying about primal drops a few years from now will be the least of your worries as the game and it's end game progression will be so different that these specific fights will become inconsequential.

Let's get back to today's jobs and how the odds change as we add more job classes.

Right now we have 9 jobs. Lets look at the drop rates when divided evenly as we progress and add more jobs.
1/9 = 11.11%
1/10 = 10%
1/11 = 9.09%
1/12 = 8.33
1/13 = 7.69%
1/14 = 7.14%
1/15 = 6.67%

They would have to add two jobs to even get below 10% drop rate. This is still statistically not a bad situation at all since 1 in 10 runs will have some decent odds of dropping your weapon. With 8 players looking for loot your odds are still pretty good.

Right now we don't even know when the first new job will actually be added as there haven't been any hints that it might drop before the first expansion does, and that is still a year out even at conservative estimates. In the end you've filled your entire argument with with hyperbole about how long and how many runs it may take to get weapons in a perceived job filled future. I find that argument to have no substance both mathematically and logistically. The game will change greatly by the time we have that many jobs and these fights won't be a key part of end game anymore. I understand you point, but I find it to be entirely a non-issue.