I dissagree.
These are sovereign nations and members of UEFA. Playing the sides like England, Italy, Spain etc justifies their existence. Beating teams like this convincingly is relevant as when two bigger teams are drawn into a group the goal difference will balance out, how you deal with the minnows is just as important as how you deal with the more established teams.
And as for the credentials of the smaller nations, recently Malta defeated a major tournament finalist at home. The smaller nations need the equal stage and exposure to be given a chance to develop.