I'm on board with people who think that something has to be done about cap flippage before you can actually do something about them balance-wise.
Snubs having an advantage over caps, such as lack of means to defend themselves, will demotovate people to play caps at all - heavy caps in particular, since those are practically the worst.
And about heavy caps. Val already heard my proposal on EDA discord, but I'll just paste it here. Give heavy caps something to make them menacing. Heavy caps as they are now are just beefy targets with lots of firepower that barely have any means to defend themselves against smaller stuff, medium and light battleships included. And I won't bring up the player's skill, it's completely subjective. What they need is something exclusive only for heavy caps that will make cruisers, battlecruisers and smaller battleships regret entering heavy battleship's effective range.
Also, some destroyers need overhauls for their heavy arcs. And to be exact - Fearless and Gallic Destroyers. @Haste already knows what I'm on about, but tl;dr - destroyers should either have their current heavy arcs swapped to one on top and one on the bottom (to make them Typhoon-ish) or they should be turned medium and receive a heavy arc that can protect their blind spots.
Battlecruisers should be just deleted. Battlecruisers were always a crutch and it didn't change ever since the rework. Either that or turn them into light battleships.