1) Putin won't come for the rest of Europe.
2) Even if the does, why attack Moscow? Russian civilians have nothing to do with the war and we're not barbarians.
3) Even if we wanted to, Moscow as a target is so big that dead reckoning starting from Portugal is probably enough to hit it. There are also a lot of other means of guidance, including sun/stars, Gee and public FM radio stations.
4) And why dones instead of ballistic missiles?