This overkill point is when the combined alpha exceeds the ship's EHP.

The biggest force multiplier in Eve is knowledge. And that cannot be beaten by numbers.

Yup.

You just need to understand that, all things being equal, the side with more pilots will always win a fight. "Force Multipliers" operate on the assumption that not all of the other things will be equal - they'll have more AHACs than you, but your 6 logistics ships will keep your pilots on the field longer and allow you to win a protracted fight. If they have more pilots than you AND more logi, all other things being equal, you're always gonna lose that engagement.

Force multipliers, by design, only meet their potential if they are not being countered. If the enemy fleet also has logi on the field, and also has ECM boats jamming your logi, and also has SD boats wrecking the lock time of your logi, you are just absolutely outmatched and any cry to "fix" the game mechanics to allow you to win will fall on deaf ears.

ECM is the answer to your question

Now now, you idiots, we don't want a situation where a group has trouble winning because they have too much firepower on the field.

Yes everything should have diminishing returns. IMO the worst offender is damage applied to a single target by multiple sources, that leads to alpha strikes, which afaik, nobody likes to be on the receiving end of.

It is also a counter to remote repairing.

Force Multipliers are things that multiply every single ship in the fleet by the same amount.
Logi are not a true force multiplier, because they can only rep one ship at a time fully. They are more additive.
Boosts are a true force multiplier. Because no matter how many ships in fleet, each ship still gets the full bonus.

Anyway, start with Tessellation, then go to line of effect for weapons. (Which also allows for weapon shots scattering, misses actually missing randomly rather than shooting a specific spot on your collision bubble which is off the ship, and impacts on different spots of your hull, and for ship facing to matter potentially) And suddenly you have a lot of strategy, and the blob is no longer automatically king.

Much better fix than trying to come up with some crazy mathematical scaling which you can be sure will get abused constantly by friendly fire methods.

Actually, splitting fire is a real thing on the battlefield. Because you want to suppress the enemy so they can't take time to line up a clean shot and are worried about keeping their heads down themselves. You don't fire every single gun you have at a single target.

So.... if you want to talk about reality, at least get it right.

Actually, it's about making fleet combat more interesting then everyone shooting the FC's target. Its so mindlessly boring, no wonder people would rather use drone assist and go afk for the fight.

Nerfing remote repair would only ruin small gangs... The small gangs will repair less, the large gangs will still just instapop any ship that gets primaried. So please leave this well working feature as it is!