Is Grand Impact disabling JoltIII not good design?

[SalamanderIX]

What bothers me about the idea is, Yes, having no option but to use Grand Impact sounds bad on paper, but what they're really asking for and what they're getting at is something more like "I am compelled and should be compelled to always do optimal damage, because in the ideal situation, grant impact is best"

Trouble being, when all buttons are ideal without any drawbacks, situational benefits or detriment, it's that kind of thing that's led to homogenization and the aformented 2 minute meta. We need buttons that are not always the best. Red Mage is actually a really good example of a job working a bit outside the grain and making great use of a players ability to adapt. Veraise is not always the best GCD, but it's powerful when you need it, there's RNG procs constantly leading to making the most of the situation, but if you can they are also powerful.