Well that's because dragons have just come back thanks to Alduin the son of Akatosh. So yeah, theres a lot more dragon bones and scales floating around, so i could see how it would be easy to acquire.
I'd also like to add
Does anyone else feel like there should be some other better type of armor forged from dragon parts? i mean c'mon, you kill like 4-5 dragons and u have a set of dragon armor, which isnt even the best armor for heavy armor users.
Just feels like there should be a harder armor to craft, one requiring more materials, and rarer ones from harder dragons.
You're missing the point cleric >.<... just because there are tons of bones and scales floating around doesn't mean any layman can pick it up and knows what to do with it, smithing profession is something that you learn, techniques that's passed down generation to generation... for your character to somehow KNOWS how to craft dragon armors within months is very unlikely even if he does have the items to make them