Earlier quoted context omitted.
Oh well I guess that depends on the win condition, and yes I can imagine 1000v1000 units can be fun (myself am an avid enjoyer of 4v4 in SC2). But especially as the number of players go up, I think the popcap should be going down. I've played a couple custom 2v2 games in SC2 with a reduced popcap (100 instead of 200) and the games were wiiiiiiiild: you have very little economy and turtling is just impossible, so the…
I love turtling. I hate that the prevailing strategy seems to be always be on the offense and micro eighty million stupid little things. esports and APS have ruined competitive RTS play. Turtling lets me build up my base and economy and nurture a curbstomping offense after which I can overwhelm my opponents. If I wanted to play a tactical RTS there are a million options out there that limit you with horse-blinders
It's easy to be too optimistic when balancing a game. It's easy to imagine "oh, this unit will be nearly indestructible, and I can watch it destroy my opponents and their bases". But what really happens is "my opponent destroyed me, I tried everything I could but his unit was nearly indestructible".
(This is why we need strong AI for RTS games. First, we get strong AI, then we find ways of dumbing it down in fun ways. In the end we have a creative AI that offers a few surprises, but is content to let the human player win 95% of the time.)