Yes. This is also a lesson the Red Army learned in WWII, and why not continue with it? Simple systems that can be mass produced are better than complex, harder to repair ones.
The complex, hard to repair ones are great if:
1. You're selling them.
2. You have absolute complete superiority and are trying to minimize your casualties
There's a country that fits those parameters very well.
And dumb is cheap. Cheap can be king, especially if you can keep making them. The US had the same thing in WWII, the Panzer tanks were better than the Shermans in nearly every way - except cost and repairability.