Which is a separata argument, more akin to a technical issue than a design flaw AND something that wouldn't get worse with a six-men party (in fact, probably the opposite: the player would have more chances to inject his actions in the middle of long queues of NPCs thinking their moves).
Do you think technical issue is simpler to solve than a design flaw or something?
I think there is many reasons why we shouldn't want to have 2 more party members, especially in the current state of the game.
It's not like you roll your entire party with same initiative all the time. 2 More targets or 2 more Gales might make AI even more confused
If Larian decides down the line that they might find a workaround and have it work well - so be it - but if they continuously say that there is technical and balancing limitations to it, and 4 is what they are going for, why beg them for more to risk the games overall perception to people?
