No irony. These are two different situations.

You aren't going to hurt a tin snips cutting cable. They are similar bypass blade cutting tools with only a different blade shape (scimitar versus parrot-beak)

Because the stranded cable might slide down the curved face of the scimitar blade it is difficult to position. You might mess up a cut and have to cut it again. At the worst you destroyed a $2 cable or will have to use it in a shorter location. But it isn't going to destroy the tool. Tin snips are fairly tough and the only way you are going to destroy them is to twist a piece of flat metal into the jaws and spread them -something that is almost impossible to do with stranded cable or cable housing.

Using an expensive tool like a bypass-blade cutter on something that IS going to hurt it like using a cable cutter to cut extruded wire or rod WILL dull, chip and damage it.

Am I making myself clear here, or do I need to draw a picture for you?