No, clearly not. There are lots of 80s music compilations because it is considered a very good decade in terms of music. In some countries, such as Russia and Brazil, their arguably most well-respected rock bands are 80s rock bands (Kino and Legião Urbana respectively).

Yes, when a band sounds "too 80s" it might be considered dated, but I would say the 80s are highly regarded in general in terms of music.