I haven't heard that one before. I can't even guess what he was trying to get at. There are lots of things to consider when purchasing new tires but that's not usually one of them. The only tire that I have heard of that actually takes a vehicles alignment into consideration is the Nitto Neo Gen.
From Nitto's website "The Neo Gen is an all-season ultra high-performance radial specifically engineered for lowered vehicles. Because the inner shoulder is one continuous block, the tread maintains stability on lowered vehicles with higher degrees of negative camber. This stability reduces tread flex and allows the tire to wear evenly. The result is a tire that prolongs performance on lowered vehicles."
-Travis