The Russian Revolution you are probably thinking of is the October Revolution of the Bolsheviks. But the tsar had already been overthrown by the February Revolution earlier that year, and some of the initial steps towards improving Russian literacy like the drafting of an orthography reform were already accomplished under that regime. Russia may well have seen major strides regardless, and the Bolsheviks are widely seen as one of those revolutions that did more harm than good.
No, I mean the whole thing. I mean that the revolution was necessary.
I don't think reforms of orthography were what mattered. What mattered was actually forcing people people to learn to read and also sending people out to teach them.
I don't see pre-1918 Cryllic as much more complicated that post 1918 Cryllic, but then I am of course literate and a Swede, so the only thing I find unusual is the symbol of softness, which is probably much less of a problem if you actually speak Russian.