I am new to this, so I'm not the one to tell someone who is far more experienced than me how it's done.
If DV isn't what it used to be then I'm sorry to hear that, especially for those who are member from the beginning.
You are totally right about the fact that it is impossible to reach full awareness, not walking with your head in the clouds the whole day however is not such a bad tip(what I personally think). Especially for people who aren't present during the day I think it isn't a bad idea to keep this in mind, call it a tip or a technique doesn't matter.

Nonetheless you might be right, maybe we are overdoing it and this is a bit too much drama made about simple facts.
Conclusion, I am one of the many people who are only just beginning and didn't think about this basic rule that tells us to just live in the moment... guess we were too stupid to see that, how basic it may seem for some of you. You don't have to be mad about it though... everyone was a beginner at some point.

Isidoor