Adjust the impact taken from ram kill explosions based on weight. So risk of ram killing light ships wouldn't be that much. They also in turn wouldn't do as much damage. But say...close range explosion from a galleon...make it like you've taken 2-3 mines depending on proximity to explosion. That there is something to stop moronic pilots from attempting to ram kill Galleons which is a good thing because honestly...its an age old problem with fail pilots. Specially those ramming galleons with squids.
So Spires being lightweight pieces of flying toilet paper, would only knock a Pyra's arcs about on it's destruction. Same principle for Squids/etc. However, you could have it be, the closer you are, the greater the effect.
This isn't something impossible. I've seen mines behaving like this in game right now when an ally triggered a mine and I happened to be near them. They got fire stacks and heavier impact damage while my vessel only caught the edge of the explosion and sustained less overall damage. Course most likely what was happening was the ship was part in, part out of the explosive radius. But tuning the intensity of the explosion based on distance away is a viable idea.
Isn't about realism, its about there finally giving weakened vessels meaning. They can't survive much longer anyways and more often than not they are under heavy disable. Which means someone is grinding them down at cqc range. Suicide charge which ends in something that actually throws off their arcs or potentially tosses them into a building/etc, would be useful and fun for the majority of players.
It would be nice to see in matches. Teams being considered as totally out of options when one vessel is down below 50% perma. Suicide explode charging could give them a very viable option if the opponent doesn't stop them in time.
Heck, if you ever got to see the original mines in the dev app and got to play Captain Phoenix's suicide loch mine Pyra...you saw the potential fun to be had in suicide charging vessels. Holy crap, imagine Whale Wars harpoon battles with it. Would be some silly fun indeed.