Asteroids can often be HUGE. Even a moderately sized one would prove very difficult, even theoretically impossible, to move compared to our ability to move stuff to and from and around ON Mars.
Why does Russia say technology will be better in a few years? Simple. The last time we went to the Moon we had no intention of doing ANYTHING there besides landing, looking around, posting a few flags, and leaving.
Russia wants to DO STUFF this time around. You have to have more than the technology to just get off the ground, get there, get back OFF the Lunar ground, and get back. That cost so much damn money and effort it was un-effing-believable back in the '60's and '70's.
As to the above comments regarding the utility of the Moon as a place to live, that is debatable. It is not terraformable per se, no. But we could conceivably live there, yes. Under domes,or what-have-you.
Mars IS more Earthlike than the Moon. It is a better option for larger numbers of people. As for the remarks about turning Mars into Earth v. turning Earth into Mars, they are quite apropos, and something to seriously contemplate.
But to make an argument, as the OP does, that Russia doesn't mean what they are saying based on the technology we supposedly had "pre-Speak-and-Spell", just shows how lacking in knowledge the average FEer is in logic and basic human progress.