You're correct to say there are two different kinds of skill: technical vs. mindgames. But since Melee had both, and it seems Brawl's technical skill requirements will be minimal, it is also correct to say that Brawl will require less skill overall.
And to answer what the point of arguing this is: I really would like to see Melee continue to be used in tournaments instead of Brawl -- at least until they discover more of a technically stimulating metagame for Brawl.
Will they use Melee in tournaments? Probably not. But we Melee players and lovers of real competitive gameplay need somewhere to vent and complain about this, and this is where we go. We appreciate your eyes.
Just to let you know. I am a competitive melee vet, granted not the greatest one because I lack the mindgames, but I was as technical with samus as you could get. Just thought Id put that out there so you can see we both come from the same background. Also, Ive been on the boards since 05 (longer then you I might add) and have many more posts, so please don't discredit me as some scrub who knows nothing. I do know what I'm talking about (granted I'm not perfect, I will have imperfections).
Anyways, on to counter points. As you said, melee did have technical and mind skills, and yes, brawls technical is lacking, but that is not to say it doesn't exist. Id like to turn your attention to this thread:
http://smashboards.com/showthread.php?t=151405 That would be pikachus new tech, the Quick Attack Cancel. People are already using B-Sticking and that to achieve insane mindgames, speed and though not combos in the traditional sense they can link moves together.
Also, please take no offense to this, but who are you to say that brawl takes less skill. Since it is clear that advanced techs will take a smaller role now, mind games are the dominate skill. If you are saying that brawl takes less skill because advanced techs are not as good then you are saying that mind games are inferior to advanced techs. This is horribly inaccurate.
If anything, what I learned from playing and talking to people better then me is that mindgames take just as equal, if not more skill, then advanced techs. You see, in melee you could practice by yourself all the time and learn every tech out there but when you go to fight an experienced human that has attended many tourneys you would still likely lose. The reason being that the human will have better mindgames then you. Advanced techs just let you pull off combos in melee, it was mindgames that put you in the position to do so or avoid said combos.
Now in brawl, with the reduced advanced techs, the role of mindgames has changed but there fundamental need remains the same. In brawl mindgames don't let you set up for a combo, now they let you set up for a hit, a single hit. After that hit (or miss if the opponent predicts you) you have to quickly re-evaluate and and try other mindgames to score another hit (or miss) and then another, so on and so forth. Doesn't it make sense that being able to hit consecutively in brawl is rather skillful if you need to set up for each hit? Melee you only had to set up for the combo and then you were guaranteed many hits (as long as you don't screw up, I'm assuming in this post that the players dont). Which seems more skillful to you?
Also, since Brawl has mindgames flying back and forth more now it creates a much more even match and overall, a more balanced roster as every character now has a chance to fight back through mindgames (and isn't this what fighters strive for?). This is unlike melee because in melee, a smart mewtwo will (almost) never beat a fox or marth or falcon or shiek. This does not mean that its dumbed down and that scrubs will be able to beat vets though. The smarter player will win in the brawl competitive scene, just as in the melee one. You just have use your brain more then you do in melee.