It depends on the purpose of the firearm and just how easy it is or isn't. I'm in the camp that keeps guns thoroughly clean and will clean them after every session they are fired. If I know I will fire it again the next day, it might just involve swabbing the barrel and wiping it down, but otherwise, it gets field-stripped and cleaned throughout.
For me, a gun like an AR-15 is 'hard' to clean, compared to a Mauser-style bolt-action rifle. It's not really hard, but suppose I fired two shots. It would be a pain to clean it afterward for just two shots -- the Mauser would be so much easier. Similarly, a lever-action or another semi-automatic action like an M1A or Mini-14 is just harder than bolt gun or single-shot. They're not really hard -- there must be some guns that are truly a difficult puzzle, but they must be pretty obscure -- so if I got to use it enough before I cleaned it, I wouldn't be bothered by a few more disassembly steps.
For an EDC piece, ease of cleaning would be way down the list of priorities. I can see the value to law-enforcement, some of whom neglect everything to do with their firearms. I'm not saying this is characteristic of law enforcement people -- there are all kinds. I think it is fair to say that the Glock design reduces administrative burden compared to something like a S&W 4006 which itself probably demanded less attention than a blued-steel 1911. For me personally, none of this is a concern. I don't have any problem maintaining one gun, a full-size revolver.