No. I think he likes them both. I'm pretty sure his post means he thinks songs about flying saucers are a display of Shakespeare like genius and not 5 minutes worth of work because kids don't know the difference. Watch this:
Kraft Mac and Cheese how I love you so
Your cheese is flourescent so it does glow
Pick you up throw you on the floor
Rover my dog wants to eat some more
I eat eat eat so that I can grow
But your ingredients I will never know
You're as healthy to eat as unwashed socks
But Mom buys you cuz your a buck a box
Eating you up makes me feel so good
Give you up? No I never could
So much time that my Mom can save
When she makes you in a microwave
When Mom saves time she has minutes free
So she can read magazines and ignore me
I'll just play with the dog, that big lug
I like sticking his tail in the electrical plug
We'll eat it all up, just me and Rover
Because if we don't, there will be some left over
I hate eating that, because it has to unfreeze
This song may suck but it's as good as Guthrie's