My point is that when used correctly they're far better than anything else;
Yes, this is the right way to put it, Otherwise "excel far more in every type engagement" is symply misleading.
And, a unit being used corectly perform greatly better is nowhere near bad in term of concept. In case of commando, they do have a unique set of capable, but back to the op question, i will say they are not excessive. Commando has been like this for a long time and i believe the last change to them was a cost reduction in mobile assault, ever since, noone seem to have too much problem with them. At the very least, commando actually require micro to reach their peak.
One of the core design principles of the game is that no doctrine unit requires another doctrine to beat it; that would make the game inherently pay-to-win, as well as imbalanced if you had a sub-optimal load-out - so IR-obers are out.
The theory is good but sadly it is not what we're currently have as certain factions are still being forced to lock in certain doctrine to fill gaps in their stock lineup. If the UKF player had pick a commander to get commando but the axis palyer refuse to pick commander with counter then it is on him.