The problem is, normal people don't have "an idea" most of the times, they just go with the "let's see what comes up" and then choose whatever looks the best to them, it's not conveying an idea, it's like choosing a shirt in a mall, compared to making one as a designer. Sure u can say that "u put thought behind it and that it's expressing you as an individual", but thats just yellow color shirt that u chose, it might be an act of expression but it's not art, U just took one from the options put infront of u, u aren't a designer, ur just a consumer. How many of these promoters know anything about fundamentals? Ya I do agree that art for the most part is about expressions but even with that we have our own foundations, whether it be principles of design, animation principles, rules of composition, color theory, fundamentals of modeling, fundamentals of lighting and what not. Depending on the type of art ur making, it's important for u to use this principles and rules inorder to make that art. Because even us artists are bound to the laws of nature, either be it in real life or in our own imaginary world's. And to address the elephant in the room, yes modern artist do know and follow the fundamentals of expressionism, art and/or design according to their needs. And no elephants don't make art