Why some filler episodes have better animation than canon?

[spidercraker]

I watched Naruto episode which is filler (don't know what episode it is. I just watched it on tv) has a decent animation.

 

[daredevil123]

Because **** logic that's why

 

[I m an Ass]

because they're dumb

 

[Laraib]

Because Goat likes to smoke weed

 

[Obitosama]

And some canon episode have better animation than filler its like that
Deal with it*look at avatar*