The OH pool feature isnt a handicap but a bonus.Instead of building 2 buildings in order to create the units that you need you get to produce them by 1 (albeit with a slight ammunition penalty).The extra micro needed aint that much since you get warned when your previous unit production is ready so you can switch to base and order the next 1 from any pool you like.
As other factions you would need to do the same most of the time due to manpower shortage but you would also need to build 2 buildings (say US barracks and weapons support center) which ofcourse require their own manpower+fuel investment thus hurting your game a lot more than the OH pool feature.
Yeah cool. Instead of 2 buildings you build 1building and a tone of upgrades to unlock the units and then you have to unlock them again via pools.
The name of the thread should be "so many upgrades are redundant when you already have the lock/unlock pools".
Btw, it may be offtopic but since when the PAK 40 is an offensive weapon?