So the new tier comes out and you want to do damage to the bosses. Right? Wrong. The ability to pentameld is locked behind unnecessary side quests and gatekept by the gil markets. Seriously. Has anyone ever questioned why you need CRAFTERS and GATHERERS so you can overmeld on COMBAT CLASSES? It's just a timesink that punishes people who want to do real content instead of blowing away their subscription time on garbage. Imagine you have your driver's license and you want to drive a car, but before you could even step into a car you had to learn how to learn how to play the violin. FFXIV is a world where only violinists can drive cars, and the actual racers are left taking the bus. And when you dare to point that out, all the violinists say "well it's not fair! Go learn to play some Vivaldi!!!". So you go "ah well, might as well look at a youtube tutorial on how to play this thing" and you realize that the violin is more expensive than your rent. It's prohibitively expensive to even get things melded. Seriously, it makes no sense to brickwall the people who want to actually play the game instead of jumping through pointless hoops. Solutions are to

1) Divorce pentamelding from non-combat classes, and give it to people who reach the level cap of an expansion OR
2) Make materia drop from current extreme trials and normal raids. When you clear a savage fight of the tier, then you're 100% guaranteed to have the overmeld go through.