No this is not a balance issue. Soviets get an awesome spotter unit that doubles as one of their most powerful squads from the start of the game. He has a ridiculously large detection radius for stealth as well. Sharpshooters in observer mode have a massive LoS. Urban will soon receive a recon ability. Partisans and the sniper ace are excellent spotters. The light tanks essentially fill the role of ACs. Soviets have no shortage of recon.
Urban will soon receive a recon ability.
It's of a different kind. Something new. You will see it in time.
nothing is lost