Why? Raketen misses quite often and isn't one shot for Vehicles thus allowing your enemy to escape even if you hit.
So the counter needs adjusted it the UC. The Rak missing is a known problem of the Rak that effects it the whole game through. Advocate for fixing something that's not working not breaking something that is.
The thing is that the OKW player needs a 270 MP unit to have even the chance of countering a 260 unit.
10 whole mp! Thats less than a seconds worth of generation. That's half of 1 conscripts model this isn't even a recurring cost. It's 10mp ONCE. A cost you will not ever even notice.
But it's cost doesn't stop being relevant after purchase. After killing that 260mp unit you as the OKW can salvage for 5 fuel AND retain that 270mp investment for future inevitable armour. Neat!