Full Moon and consequently Orbitbreaker have literally never been well-designed. It’s nothing but a cool spell effect whose gameplay execution has always been lacking, either bad or unhealthy.
Frankly, I don’t understand why Wrath and Starfire still even exist, either. Hard casted spells that tickle HP bars are terrible design. Make them – at least Starfire – more consequential. But I guess that’ll never happen due to the asinine cooldown/modifier-reliant gameplay they’ve been peddling for years.
One of the key differences between Feral & Boomkin survivability for many years now has been the former’s infinite Predatory Swiftness instants, while the latter OOMs for weaker hard casted heals. It’s just a bad dichotomy. Owlkin Frenzy should allow either your next Starfire or Regrowth to be instant, and Protector of the Grove should buff Regrowths cast on self as well.
Treants are just a dumb AP generation button right now. They should have their former rooting utility back. Even that might not be enough to kite the melee train in today’s game, but it’d help, and boomkins frankly should be the master of roots as a CC (instead, again, feral can do them better).
Astral Power has ruined the spec offensively. MoP’s balance bar was perfect, and allowed skillful manipulation to reset Starfall CD. Having Starsurge & Starfall be mutually exclusive AP spenders feels horrible. Starsurge procs provided a far more visceral and effective incentive to spread DoTs than trickling AP and tickling damage with zero dispel protection do.
Don’t get me started on how bad Stellar Flare has always felt, being a hard casted DoT that does little damage, has no dispel protection, and locks us out of all schools if kicked. Why is it even a thing?
Oh, and Nature’s Swiftness. Not sure why we ever lost that utility.
In short, modern boomkin’s really just a pathetic shell of its former self. The game’s as or more rife with CC and damage as MoP was, yet boomkin has a fraction the amount of tools to keep up, while melee have proliferated more and more.