LPS-45425

Hey @robertoDiaz, @sergiogonzalez,

I am not as familar with DL as you, so I am very honored you asked my opinion:) I would keep some kind of warning, so I added the same warn but only when none of the different thumbnails exists. What do you think?

Regarding the refactor, if you guys have any proposal please just do it and send a pull either to @matethurzo or me.

thanks,
Daniel