Because according to the law as posted and what I have looked up, if there is reasonable suspicion of a crime having been, is being, or will be committed, they are allowed to ask for ID which is a very broad opening. Taking the word of a guy trying to sue for 3.6 million or his lawyer is not a possibility to a rational mind.
No reasonable human being (aka jury) will agree that Mr. Call was involved in disorderly conduct in violation of 2917.11(a) - the ONLY crime the police officers are accusing him off, especially after being ILLEGALLY detained, ILLEGALLY disarmed and ILLEGALLY demanded an ID. This case is so air tight I can't believe there is a discussion. As far as amount goes - that's for the lawyers and judges to decide; wrongful arrests settle for $500k on regular basis.
I see you keep reaching out for "open carry in the car" - but it's all in your mind: it's not mentioned in the video, article, charges filed by the police, or the lawsuit; jaywalking is a more likely crime - maybe you should try that angle.