I'm going to use your logo as an example of what design should be and why the author is on the right track.
Your logo looks good. Visually, it's fine...
But what's the point of having dual colored shapes? Why is there a circle behind the antennas? What does the robot represent? Why orange? If you showed the logo to someone, would they be able to think of a word that coincides with a goal/mission of your company? Why is it looking down? If you're looking to predict (keywords: future, time, ready, etc.) then why not make it look forward?
These are the types of questions that struck me first looking at the logo. It feels like there was more focus on how it looked than to what it represents. That's how Dribble designs feel.
They look good and they get the job done (i.e. you have a logo, a client gets a site, etc.), but when you combine functionality with design, that's a real home run.
Using logo design as the example, the first goal of the designer should be to understand the company. What does it want to do? Why does it exist? Like a person, you want to get to know it before you can label it. Once you have the part of what you want to symbolize, what you want to communicate, you can start sketching. Start trying to really capture the soul of the company and present it in an aesthetic and still functional way.
Having aesthetics without much focus on function, that's what I feel the author is categorizing Dribble designers as.
Having functionality without aesthetic, well, we'll use an automobile for that example. A functional without aesthetic car would be a garbage truck.
Having aesthetics and function, you get brands like Porsche, Apple, Lego, OXO...
Sorry for going on a rant using your logo :-)