I just completed another scenario as NATO where I faced a number of Hinds and I still just can't get over how utterly inept the NATO AD units are. I very, very rarely see them actually engage targets and I can only recall seeing 1 Soviet helo brought down by one in all the scenarios I've played. Just one.
The Soviet AD units? Oh yeah, those guys are badasses. I lost all 3 of my Kiowas to them in the very first 2 minutes of the very first command cycle of the last scenario I played. Three shots, three kills.
Back in the day we worried a lot about this too. The USSR kept developing and fielding a vast array of sophisticated, mobile, and apparently effective SAM and AAA units, and we...didn't. There was a lot of denial, and dismissing of the Russian gear as ineffective or primitive, but that really didn't wash. Our experiences in Vietnam with Russian air defense systems, and the difficulties the Israelis had before they could physically remove the SA-6 sites with ground forces, among other historical facts, should have made us a lot more worried, but a combination of political and economic issues made such awareness elusive.
Ultimately, you could argue we made the right call, because we never faced a Pact attack, and post-Cold War we've had exactly zero need for low level, tactical, ground-based air defenses (Patriots vs. SCUDs are a different scale and scope, of course). But I'm not sure today that we're really any better off, maybe even worse off, given that everyone else has developed scads of good low-level air defenses, and better CAS and helo capability, and we...got rid of the A-10s and still don't have SHORAD worth a damn.