I'm not missing anything, taking away features, having something that doesnt look as good as something else, not giving people the option to play online, not giving people the option to play against challenging a.i. as well as easy a.i. not giving people the option to play a well thought out single player game/season, how does taking away peoples options make games better? I'll answer it for you they don't. All the things i mentioned above enhance the gameplay experence. Just because some people who have bad taste in games who don't use all of those things or even know they are missing them because they don't know any better don't care about them, doesn't make the lack of these features turn a bad game into a good one.
Using your wii bowling example i'll show you why these features would make it better. As well as being able to play as mii's why can't you play as real life professional bowlers, how would having the option of playing as these people make the game any worse? As well as having an exibition mode to play one off games, how would the inclusion of bowling tournaments to win trophies that you can show off make the game worse? As well as playing your friends round your house how would the addition of adding online play make the game worse? If you wanted to look at it, how would the option of looking at your detailed bowling stats make the game worse, if you don't care about them then don't go to the stats page, if you're interested and wanted to see what type of shots you do the most and what type of shots you do best/worst at then why shouldn't you be able to? If you don't want to listen to music when you bowl then fine you don't have to, but why not include the option to have custom sound tracks if you want them? Why not add proper leaderboards that track your scores, how would that make the game worse? Also why not add more game modes, you don't have to play them, but if you want to they are their. Also why not make the game so you can create custom bowling balls, custom pins and custom bowling clothes to bowl in. None of those things make the game worse, they only make them better, just because their is a group of casual gamers with bad taste that may or may not use those things doesnt make the exclusion of them ok and the game a good one.
Disclaimer: I am trying to adress everyone of your points but that huge wall of text is nearly unreadable. It looks like you are repeating the same arguement with different examples but if I miss an important part please tell me.
Lacking a feature can, in some ways, make a game better. I would rather have no story rather than a shitty one I have to suffer through to get to the good parts of the game. You still miss my point though, or are side-stepping it. I am not saying the game is better without online, robust single player, top notch graphics, wonderfully orchestrated music, etc. I am saying that those games do not necessarily make the game better. Wii Sports would be no better with online than it is right now without it. Wii Sports would be no better with a story mode than it is right now without it (and could get worse depending).
Adding real life bowlers to Wii Bowling would make the game worse, hands down. Have you ever heard anyone complain about how absolutely retarded Miis look in Wii Sports? They are horribly done and look amazingly stupid. The world was created for them though and they really look like they fit. Most of what you list wouldn't hurt the game, but it wouldn't help it really either. The purpose of Wii Sports is to get 3 of your friends around and do something retarded. Having online play would only be as fun as really amazing AI and that is kinda boring. This applies to many things you have listed.
You have a nice list of features there that the hardcore love and I admit most of them are nothing but positive. The reason we have this disagreement is because they are not essential. You are looking at the games backwards. Rather than asking why not have those options when you should be asking why have those options. Why would a Zelda game have online multiplayer? Well there really isn't a very good reason to and thus it never materializes. Only the worst game reviewers will complain about that though.
I use Nintendo a lot here but I think the trend universalizes quite well. Why should Warhawk have a single player? Why shouldn't MMOs have an off-line mode? These kinds of questions are as endless as they are pointless. Unless a feature actually enriches the gameplay experience the designer intends then it should be forgotten as extraneous. A game with those extraneous features should be praised, but one lacking them should not be faulted.