Thanks for the constructive (and sometimes not so constructive) feedback. The point is (at least in 2v2s) that Katyusha spam is the method of choice and I am talking about top100-top50 teams relying on that. I understand that Katy is effective on close range, because of risk-reward, but even on long range it is more than just formidable.
The problems I see are the following: as Soviet you always go T4 anyways (unless you spam M4Cs ofc), so you dont have to "detour" like with Ost or OKW, or to go for a certain doc like with Brits and USF. Furthermore, you can effectively use long range barrages (especially in comparison with the Pwerfer), since every rocket has the potential to wipe/do massive dmg. So often you can kill retreating units or units you didnt even know that were there with the scatter. Plus, they are super effective to easily get rid of any OKW truck from a safe distance, especially when paired with 120mm. Thats what you see every game in 2v2s. Penals, 120mm, Katyushas and T34/SU86 accordingly.
I mean you have a good point, but won't 1 diving tank solve all your problems, especially if you're OKW? You do need to remember that katyushas and pwerfers get 1 shotted, so if they spam a lot and only have a couple tanks, a panther should be able to kill multiple katyushas and still escape, especialy if it has blitz and armored skirts.