The Dev Team knows that a vast majority of Merit Abilities and Spells aren't used because of the Merit limit on those categories, right?

For example, no sane Brd wouldn't do 5/5 Nightingale and Troubadour; they're just too useful and necessary if you have to put up a lot of songs. Thus Dirge and Sirvente are never seen even though they could be helpful in adjusting the flow of enmity in battle.

Another example could be Rdm, which is extremely limited in how they can merit their spells. Unless they want them to be very effective or not last for very long, they HAVE to put more than 1 merit into a spell to see it be truly effective, usually around 3-5. So adjust Blind II as much as they want, but good luck ever seeing a decent Rdm put their limited merits into that.

The list goes on and on for situations like these, especially for jobs like Blm and Nin. I can understand them not expanding merit points on things like attributes and other similar categories, but the Job Specific categories could really use an expansion. It feels like such a simple way to please the player base, and yet they just won't do it. It doesn't make any sense.