No. "In obstruction" is not a thing. You commit obstruction. Obstruction as a crime will obviously have different elements and defenses to it, depending on various jurisdictions, legislation, and other circumstances unique to each individual scenario. However, whether something is or isn't obstruction is very clear cut.
If you impede an investigation, you are obstructing the investigation. Refusing to provide a password is, without any shadow of a doubt, impeding the investigation. The obstruction is factual. However, as a defense to the obstruction, you may be able to claim that you were lawfully allowed to obstruct their investigation.
Whether or not the obstruction is lawful. The fact that obstruction was committed is not being argued. It is an accepted fact.
This case isn't about the obstruction itself. What it is about, is whether or not the officers have a legal right to search the contents of the phone itself. If they don't have a right to search the contents of his phone under the circumstances, he did not commit a crime by obstructing them. But he still did obstruct them.
You guys seem to think this case is somehow about whether or not he obstructed them, and that's what you still don't get. It's not. It never was. It never will be. The entire case is asking "are they legally entitled to search contents of a phone due to reasonable suspicion?"
After they decide that, the obstruction is already accepted fact, so he would be found Guilty.
But please, I beg of you guys, stop trying to say he didn't obstruct their investigation. It is factual that he did.