So, when I think of "interactivity", I think of something different -- I think of Black Mage. In normal mode content, even as a casual, it's possible to end up in various recognizable "failure" states. For example:
There's this definite feeling that it matters what buttons get pushed when and which order. Which is to say, there's some sort of interaction happening, even if it's not always literally "push this button to modify this other button."
- You greed in Astral Fire a bit too much, the timer drops to zero, and all of a sudden, you realize you're at zero MP and can't easily get into Umbral Ice.
- You transition from Umbral Ice to Astral Fire, only to notice that you forgot about Umbral Hearts.
- You got distracted by mechanics and let Enochian drop right before generating a Polyglot stack.
In that same normal mode content, I can't say I feel the same for White Mage or Scholar. (I don't touch Sage or Astrologian, so I won't comment on them.) There are no real failure states that come to mind.* And beyond that...
I routinely forget that Fey Union exists, so it makes no difference to me that there are buttons that feed the fairy gauge. Dissipation just feels bad to me, which means I don't push it, so asking whether it interacts with my kit is like asking whether a tree falling in a forest with no around makes a sound. When (or if) I push Temperance and Plenery Indulgence generally feels irrelevant. There's nothing to make me feel bad about overcapping on lillies.
*True, when I push Swiftcast and Thin Air matters, but it's always before Raise, and this is so rote that it fails to register as a "real" interaction.