So the American Plan To Trap Snowden In Russia For Propaganda Purposes comes down to.... revoking a passport for a wanted criminal, something we do hundreds of times ever month or whatever? Not much of a conspiracy.
That's not how that works. If Ecuador was willing to grant asylum, Ecuador could easily have arranged transportation or issued their own passport. They still could, today! They didn't, and won't. Obviously you can spin that part too as part of a nefarious American Plan. But... Ecuador didn't want him either. It's as simple as that.
And he's in Russia, equally simply, because Russia was willing (frankly eager) to antagonize US influence and interests.
(FWIW: your last example of Snowden's seeming independence from Russian interference is a half decade stale. Please. What does he think of the shooting war his host country started?)
Just don't spin this. Snowden broke US laws, fled the country, and ended up being hosted by an enemy. No more complexity need exist.