Yes, I totally agree with you. I do admit that I am generalizing, you are correct in that regard. Certainly, if buying a Lomo kit makes someone a better photographer, I'm all for it.
As for my Zorki C... funny that you chose that one.
It was my first Rangefinder camera, and I purchased it when I was just getting started in photography. I also purchased an auto-everything Canon EOS 1000 with a 35-80mm zoom (AF, AE, Motor drive), which I was using the most at the time (Zorki was a shelf-dweller). Now, I understand that it's not the gear that makes the photographer, but... the EOS made me lazy. My composition was terrible, I snapped entire rolls away that turned out horrible pictures. When the EOS met it's end (defective shutter design), I looked to my old manual everything Zorki C. Using the C taught me to take my time with my composition and exposure (with a handheld meter), which I feel helps me produce better photos. One of my favorites on my wall is out of one of the first rolls of film out of that one. Hyperfocal distancing became an important skill to learn for me.
After I started shooting more calmly, I allowed myself a few luxuries on my SLRs (mostly)... aperture-priority exposure w/manual override and an add-on motor drive (which I still have to restrain from overusing, as I get too trigger happy).
The experience I had using a full-manual camera that I had to repair myself gave me experience to build on, both in taking my photos and caring for my equipment.
But that, of course, is simply my own experience. It all depends on the person 🙂
...and yes, I am a bit sentimental about that camera 😉
Part of the attraction for me: I like old engineering... always have found it interesting. I'm saying this with the WWII navy reciever I built a power supply for sitting behind me, just below my WWI-era spark telegraph key. Of course, it also helps that the FSU gear is often relatively inexpensive for my tiny budget 🙂