Maybe I've been playing it too long, but WHM doesn't even have anything remotely close to "interesting" management for me. I don't view it as an interesting system of tradeoffs at all. What tradeoffs? You have the free oGCDs (that the other healers unfairly have far more of), which you use first. Then you have your DPS loss lilies, which you use second. Then your unfairly more expensive but not actually stronger GCD heals, which are third. That's the priority order. There's no real interesting interaction between your heals. They don't feed one another. They don't *do* anything other than "cure the party by X amount". I'm not managing MP by making meaningful choices. I'm just running dry spamming my basic boring damage nuke over and over and over again while being hamstrung by my arbitrarily smaller oGCD kit, outputting less damage and lower healing numbers than the others because WHM has to suck for ~reasons~.

IMO, WHM doesn't struggle for interesting reasons. They struggle because their kit just sucks.