I would argue that:
1) boost is already too powerful and needs a counter, and ubiquitous permaboost was previously a hard counter to drag munitions.
2) drag munitions is 100% avoidable with PD or screening shot or even just evasive flying, since packhounds can be outrun by most fast ships or disrupted with TLB. Also, adding screening to frags makes their sustained damage so low that they're hardly worth slotting.
3) moderately neutering boost would realign the current power curve among large ships, finally giving ships like the Corvette a counter to god-mode ships like the Cutter that otherwise have a permanent get out jail free card that should never have existed.
4) this is also a much needed Nerf to shield booster stacking by making having 1-2 point defense and/or EMC a very good idea. I've negated other players that stacked all seekers and packhounds by using either 2 EMC or 2 PD and reversky/strafing. Or a couple of each. For complete missile/torp defense. EMC is incredibly powerful when used well.