I don't understand all this talk of fairness.
There's a whole bunch of aircraft I'd love to see in DCS and 'balance' doesn't come into it.
I'd snap your arm off for a western multirole aircraft without any Russian equivalent being available.
I'm sure most of the people who talk about 'balance' really just have a preference for a different aircraft and if everyone was suggesting their preferred airframe be modelled, you wouldn't hear them saying
"Oh no... We can't have that wihout X, Y, or Z"