They didn't need to refuel at all of course as the 'armada' includes fuel tankers.
Probably just testing the water, or maybe force of habit. Anyway, NATO complained, Spain asked what was the purpose of their mission, and the Russians withdrew the refuelling stopover request.
So the whole thing is about as pointless as the deployment of the Kuznetzov itself, which is an ageing rust bucket with outdated weapons systems. If Putin had launched a gigantic papier-mâché phallic symbol from Severomorsk the other day it would have been cheaper and more honest.
Meanwhile, he continues to bomb soft targets in Syria in a frantic attempt to prop up a fellow war criminal. Probably before the White House gets an administration with more metallic dangly bits in January. There's not a lot we can do about that immediately, but no point beating ourselves up about it.
The Kuznetsov's contribution to the slaughter is likely to be more cosmetic than anything.