Obviously if you don't know anything about Lindholm and jsut watch his stats page, he may look underwhelming.
By now you should know I know my stuff though, Lindholm is a 25 +ES pts D, thats top pair D production. The fact he plays second PP shouldn't take away from his value, anyway we don't need a PP defenseman, we need an ES minutes munching monster. Which is exactly what Lindholm is.
He's also as injury prone as Markov was. Freak incidents doesn't mean you are prone to injuries.
There's also the fact he's been playing on a bottom feeder devoid of all talent for almost half a decade now, but hey what ever, you are clearly an expert on the matter.