The coaching staff is definitely seeing these things, Lawpoke. The wide splits are an advantage in the spread offense, but the linemen have to get used to a different way of doing things. For example, with "standard" 6"-12" splits, the interior linemen form a brick wall up the middle. Defensive tackles and blitzing linebackers hit the center and guards and are pushed outside to the tackles. The tackles then make sure that no one gets around them, flowing around and behind the quarterback, thus forming the pocket. This is a good scheme to employ for balanced or power running teams, as the line is easily able to double team and push back the defensive front.
With wide splits, the gaps that the defensive linemen and linebackers try to attack and get through are bigger. Instead of the tackles making sure no one gets around them, they must now make sure that the defense isn't able to get around the corner. If the tackle is facing the sidelines, then he has failed him assignment and the defense has forced the QB to step up into the pocket instead of allowing him to scramble. The guards and center must react much more quickly to cover their assignments. Instead of being able to double team, they must look to take on the defensive front one-on-one. In the event that a double team is needed, a large hole is left where the double teaming lineman came from, allowing a blitzer a good chance to come through untouched. The pocket doesn't form up as nicely in this scheme, as the idea of the scheme is to keep the defensive front more in a straight line. The scheme is great for spread and spread option offenses, as it gives the QB and RBs more room to move east and west. The advantages come from your mobile backfield. The QB scrambling stretches the defense, opening passing lanes for the receivers to exploit.