Perhaps - he supposedly turned down numerous P5 jobs before going back to OU, but I guess we'll truly never know if that was really the case. That could have been stuff put out there by his agent.
They were absolutely decimated by the portal as you said; in fact, I think it approached 2021 Tennessee levels in terms of net players lost. However it is hard to hang a hat on these losses in any way. Other than the close K-State loss which looks better now than it does then, they are blowout losses (TCU and Texas) or games they shouldn't have lost in the first place (Baylor, West Virginia). If they played TCU closer, then they could say that was a good loss...TCU is obviously good this year, but they lost to them by over 4 TDs.
If I'm an OU fan, I'm concerned right now that they could be entering a phase similar to after Barry Switzer resigned. It seems eons ago now, but they were in the wilderness from 1988 until they hired Bob Stoops in 1999. They are having this turmoil right on the verge of them entering the SEC.
Can you imagine Eric Gray in Heup's offense? Oof. Not sure he cares though because he's still having an awesome season individually.