I do have really have a place to post thoughts about MTG cards aside from here so I'm going to put this out in the aether.
I think fetch lands have had an adverse effect on Magic overall, but their function is needed to be able to play any decks that do interesting things in my opinion. I think they could have been designed in a way to minimize their hyper efficient use by having them read something like this: Look at the top 10 cards of your library. You may reveal a (land type A) or (land type B) and put that into play. Put the rest of the cards on the bottom of your library in a random order. Exile this card.
Not sure if other players think fetch lands are not good for Magic but I wanted to share this thought.