No one, anywhere, is confused about what the Sap offer meant: The Jazz could only offer him a contract that is well under his value. So it's a no-brainer to offer him that, and it would have been disrespectful not to. It's completely meaningless outside the thin hope he might actually sign it.
With Al, there is no way to set parameters on a deal. They can't offer him 3 years at 24. And Al knows his real value is from having the 4/5 year options in FA. So each side is well aware that those negotiations will happen after next season.
You're reading stuff into this that is a total distortion of what's going on.
Besides the fact that Jefferson doesn't do anything to help the Jazz win meaningful games, this is another reason they should be looking to trade him. Let some other team deal with the decision of whether his 19 and 9 really justifies a contract or if his warts that have been addressed ad nauseum make it easy to let him walk.