It's an opinion, but I can't agree to that. Specially about the playoff style you're talking about. Any hab fan with some jugement will tell you how good Markov was against Joe Thornton and the Boston Bruins. Remember the butt-ending and the crosscheks? He virtualy neutralised Thornton, which by any standards, is one of the best powerforwards in the NHL.
I think there's a misconception about defenceman in north-amercia. Always has to be a tough, body throwing, stick swinging guy. To me a good defenceman is the one that goes in the corner and comes out with the puck, whether he uses his shoulders, or technical skill dosen't have any importance. And A.Markov is exactly the type of defenceman that wins battles, but he also is great at generating counter-attacks and on the PP. He's a complete player.
The thing with A.Markov is that he's a shy guy and dosen't seek stardom, simply does his job...so he's less regarded as an elite defenseman, which he is.