I would like to hear more reasoning from your part about why you think so (or you could quote some of his posts). After being the one who stalked these boards for while, I have yet to notice anything similar to the things that you stated about him. In the end, match-ups and tier list positions do not matter THAT MUCH. Yes, the tier list is the most accurate depiction of the ranking of the characters and I fully support it as long as the makers of it are knowledgeable enough to be in that position. And no, I am not one of those "tiers R 4 QUEERS" ignorant type of fools. What I want to say is that when using a character, what matters more than their placement in the tier list is YOUR ability to use the character to its fullest and overcome bad match ups. Just as an example, Fow recently won a major Californian tournament using Ness (a characters that once used to be worse than Lucas). He beat present top level players such as DEFH, Tyrant and Tearbear who are all supposed to be experienced with the match up.
You also shouldn't be looking blindly at the tierlist when comparing characters due to the fact that tierlists change over time. Hell, who knows if some really talented player starts using Sheik (Izaw ain't that good) and makes her move to the top of middle tier. A character like Shiek has lots of potential that only a few good players have exploited close to the fullest. Characters like ZSS, Fox and Wolf have had this happen during the history of competitive Brawl.
So yeah, I'll go to sleep now since its almost 5 AM over here and I just felt like writing stuff here at these boards. I dont exactly know what KALLLucas has been talking about but I doubt that he doesn't consider tierlists or MUs to matter as much as what they actually do.