Yes, I'm afraid you're right... I'm not an expert, but I think your selection was of "commercial vallenato" only, so far I could hear.
But that's normal, it's called "Commercial" because it's the most consumed, so don't worry about your choices...😉
!BEER
But that is actually perfect for the post, since I am sure I have been also exposed to mostly commercial Vallenato. Though I am sure, at some point I am going to get to explore the more interesting traditional variety, and most importantly, learn to tell the difference!