Can the chair of a conference's panel be reported to the organizing institution?
Yes, you can complain. There is no reason not to if you are dissatisfied even if all of the prior expectations are met. But the organizing body may do nothing or it might just not ask that session chair in the future. There is probably nothing that can be done in the case you cite unless you are willing to contact the presenter.
But that is also something that is acceptable. Perhaps you will both get access to the slides skipped and get any questions answered.