What about the three that asphyxiated when a purge valve opened too soon?
Technically, that was just prior to reentry following separation from the orbital module (Soyuz 11). Komarov was the only cosmonaut to buy it after reentry.
They were dead long before they hit the ground -- I didn't mention them because the issue was the hard landing.
Both the US and USSR rushed the space race. The US had a lot fewer casualties, whether due to greater skill, greater luck, or both. It is cruelly ironic that, for all our technological superiority, most of America's space travel fatalities came after the last of the Soviet/Russian ones.
Of course, the Shuttle was obsolete the day it launched, and it's unconscionable that we're only now beginning to look at a replacement, but that's another rant.