What a quick diversion from the RN to Russian army :-)
Engineer, please, look at the author of that artice - "a diplomatic correspondent" talking about electronic warfare :-) Plus an abracadabra about "Russian military operations in Ukraine". The guy is totally inconsistent: if the Russians are so smart, why did not they overtake Kiev in two days? The answer is obvious: there are no regular Russian troop in Ukraine :-) Advisors, some volunteers - yes, but on the other side there are many NATO advisors and volunteers from West and nobody cries about that.
Coming back to RN, this is probably a reflection of the "threat model" currently used by the politicians. Clearly it is not needed as far as Russia is concerned, but (from a trespasser point of view) regarding issues like Falklands, it should be kept in a good shape....