I agree.
Some thoughts that come to mind ...
- As you say, the "zoom with your feet" is great advice - if - you're able to. If I'd taken that advice last time I needed it I'd have fallen down a cliff! Theory -v- practice
- At the same focal length (eg 85mm) there's no doubt that my EF85/1.2L is sharper, and with better colour and contrast than my EF70-200 F2.8L IS at 85mm - but - that doesn't mean that the 70-200 is "bad"; just as a GP2 car isn't slow just because there's an F1 car in the race. My experience is that you can end up with (for all intents and purposes) the same result from either; the zoom just requires a little bit more processing.
Here's a quick "case in point" - one of these was shot with the 85/1.2L and the other 70-200/2.8L - just wondering if anyone can find any issues with colour / contrast / sharpness with either of them?