Once again, Mr. Chair, I understand the position of Mr. Davies in wanting to discuss this, but frankly, the rules around what a chair can and cannot do are established, and it is the job and the role of a chair to call meetings based on the direction of the committee. The chair acted exactly in that fashion. If members of this committee don't like those rules, then they should take the matter up procedurally at PROC or within the House. Those are the Standing Orders, and the chair has the authority to do this.
In addition to that, I've never seen a committee which, if members asked for specific witnesses and they were not available, would hold a meeting and all just sit there. If that were the direction of the motion—that, if witnesses were not available, the meeting be held anyway—then the drafters of the motion should have written that in.
You can't, however, go back on a poorly written motion or a motion that didn't encompass all of the things you wanted and now blame the chair for not being able to read your mind into an understanding of what should happen in the event that witnesses are not available. We can invite witnesses, but we cannot control their schedules.
If the intention, then, was to have a meeting despite not having witnesses, that should have been included in the motion and—coulda, woulda, shoulda—you'd have had to come forward and have that stipulated, because the chair followed the direction of the motion as written, and the Standing Orders are the rules that govern the responsibilities of the chair.
If those rules are something you want to review, then there is an appropriate way to do so. Blaming the chair for fulfilling his role, however, is not appropriate, and blaming the chair for something that's not written as part of the motion is also not appropriate.