I agree that it would help in many situations ... but the fact of the matter is that if you are running Absol you want to start with him and the way to do that is to run 4 and minimized the number of other basics.
You don't lose THAT much from cutting one of your Absols and in return you gain SOOO much.
GardeGallade+Absol is an in-consistent deck, that's a fact. I ran 4 Celio and a BeBe, and still didn't get t3 Garde or Gallade every game
I guess the question is, do the Pros out weigh the Cons? In this case they do. WORST case scenario, you start with stantler (or ralts, you have the same odds of starting with stantler/absol as you do a ralts). You attach to it and use lead. You can get a celio or a roseanne or a bebe or whatever. You are ALREADY in that much better shape. Next turn you simply retreat to absol.
Maybe my style of play allows this, there is plenty of logic behind my reasoning, and I think that most people will agree with it.
If you date back to the Blaze/Gatr/LBS/whatever , you'll see that alot of these decks would cut down on their ideal starter pokes to overall increase stability.
Blaze, most of them cut down on 1 dunsparce(SS) in order to add 1 Jirachi(HL or DX, both were amazing).
Gatr, no Gatr deck ran 4 Cleffa even though it was OBVIOUSLY the best starter pokemon in HISTORY.
LBS, Yeah it wanted to start with Jirachi(pref HL, but good ones ran DX too), but it only ran 1 of each
The point i'm trying to get you to see is that the deck doesn't need 4 absol to be good, worst case scenario is you don't baleful wind untill t2.... OH NO!