To help your argument, rightfully, you posted some of the most mediocre theatrical CGI that has come in recent years. In the films I posted there is so far better rendering it's not even a contest.
Bad practical effects are real objects -- but if they are bad, they look like what they are: bad effects. Which is the point here. There is no illusion in a bad rubber suit, or in a bad miniature, as there is not in a badly animated digital character or a badly rendered digital city.
I am a practical effects guy. I f**king love practical effects and would take them over CGI anyday. But good CGI (and I mean good -- not something like that bulk of crap) is by no means worse than a bad practical effect.