The tone is the same as it was from the beginning of the first thread and this is how it was meant originally, without jumping to consequences.
Thing is, this change would do more than just debalance ship classes. It's conceptual change of ship combat involving capitals or other bigger ships, turning combat in less hit and run or stationary shooting to more maneuverable combat with more value of energy efficient weaponry over low refire with high damage, thus making heavy capital weapons more long range bombardment tools than means to release energy in a joustle.
In other words, capital ship would be less stationary weapon platforms, like they tend to be now in many cases. And in my opinion, it's only logical to have ship overall ability to maneuver on the battlefield controlled by the ship agility parameters without inefficiency of the ship control playing its part.