AgreedThe 5mwd exsited way before CR. But I do admit that you might have had a point. Except most young DM and players in my area are barely able to read English, much less speaking and listening to it. This is the reason that I think that the 5mwd is related to DM's styles and a lack of explanations of what is expected in both the DMG and the PHB.
Then like the Jackie Chan movie you bring the fight to them Jackie's character never wants the extended fights either but he keep running in to them. The 5mwd is a problem because of the habit of location keyed encounters and the initiative resting with the party. If a DM wants to change it up then the fight comes to the party.Both yes and no. It depends on the narrative you want to instill and inspire. It can be at la Jackie Chang where one fight leads to the next (not necessarily funny) or in preparation for a big show down like westerns of old. The 5mwd has its place in the narrative. The problem arises when the 5mwd is the only thing the players want to do.