I agree 100% with you. It makes you wonder why DE would implement this when he doesnt have the players to run it. Seems like trying to stick a square peg in a round hole.
Because it's the Erickson spread, not the modern spread option. Erickson was running this spread 40 years ago, and it was designed for HUGE, TALL QBs who could take a hit.
Over the years he's had all kinds of QBs. At Miami he ran the same spread with Craig Erickson and Gino Toretta, and neither of those guys were going to beat me in a foot race. Maybe Erickson, but it would be close.
On the flip side, he was the genius behind Timm Rosenbach, who was mobile, but nothing like the option guys today. He thought he was Tebow-like, but he usually just wound up with his nose in the ear hole.
Honestly, this version of the spread is older than many of the posters on the board. Erickson more or less stole it from Jack Elway and modified it in his early career to accommodate the special skills of his lightly recruited players. Joe Tiller, and Erickson disciple, took this same principle to Purdue and churned out 8-win years like they were going out of style.