With all due respect I think you are making a number of assumptions. First however let me clear up a point. I have never said doomstacking should be disallowed. I think a player should be allowed to stack all the ships they want too as I have stated before. In CK and EU there are penalties to having large stacks. Stellaris doesn't seem to have any that I have seen.
Rotating units in and out in precise timing is not they same as throwing in a doomstack and you stated the difference yourself , a ton more micro.
Your assuming that your raiding fleet will smash your enemies systems. They may and then again they might run into defences that stop, delay, or minimize the damage. All the while your enemy is also churning out ships. I'm not saying the tactics your propose will not work they certainly will at times but again other times will fall flat. Look at the last stream, on the southern front the blorg systems where raided. They lost a hugbox guarding a mining station while the southern empire lost two planets. That's a good trade imo.
we know a few things.
- even millitary stations tend to melt when faced with a small sized fleet, because they get focus fired on. they need support.
- the vast majority of space stuff does not have guns
- travel is fairly slow
- if you lose a few ships you can pump out more during the war without much problems
- planets that have recently been taken over are nigh defenceless
during the war with the just league the blorg didnt actually get raided that much. they got raided once, and lost their hugbox before they could get their main stack to help. they took a planet. advanced to the next one. and lost it to the just league again because they coudltn defend it and attack at the same time. they couldnt force a pitched battle against the wormholes. then wiz split his fleet - one half getting compeltlly destoyed by a larger just league fleet that took that opportunity to strike. we saw another just league member contest the zrama's during the war, but with the support of the zrama's the blorg could keep their fleet together. in the south, the blorg couldnt hold more than one planet at once. if the just league not had a decent amount of rebel problems they could have pushed into his empire from the south as they outnumbered him there - if not all in one big fleet.
if EUIV did not have any attrition or combat width and allow all units to fight in oen large melee, i still wouldnt move my army around in one giant doomstack. far too slow in reacting to things and taking provinces. maybe once in a blue moon i'd join them up, but generally i woudlnt.
rotating is in my eyes just a micro-intensive and annoying way to get around doomstack limitations. before the morale hit in EUIV was introduced my MPwars often turned into giant rotations in a single province. we'd throw in a stack and rotate as they got low. functionally no diffrent form havign our entire army duke it out in one province - just a lot more micro, which doesnt make the game more complex or harder or better in any way.
from what we've seen, NOTHING seems to give a large hint that doomstacks are or will be some kind of OP way to win all your wars if your fleet is bigger. it's a tactic to be sure, but not one that busts all others. in fact, i think it's a fairly weak tactic that only works if you massivly outnumber your enemy or can gaunrantee them not getting into your space.
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