OK, so yesterday morning I got a blue unidentified armor. Nothing odd there, right. And I made the sometimes common mistake of salvaging it instead of identifying it, yeah, sucks sometimes. Thing is, instead of crafting materials, I actually got a rune! What's even weirder, it was an unidentified Mesmer Rune!
Question is, is this normal? Can't really call it a glitch, cause ya know, you're supposed to get runes from unidentified armors, but still, it is odd, right? Does this happen?

Sorry no screenshot, simply forgot to take one and had already identified the rune after showing it to my wife, then realised I hadn't SS.
I'm wondering if this is a normal thing, but maybe really low chance of getting something good if you don't identify it. Cause I know I've done this mistake many times before and only gotten materials, just not this one time.