In none of those cases was it the legislature itself which requested the hold, just a minority of members acting on their own outside the authority if the legislature. They have no more power to request such a delay as you or I do.
Next, Pence broke with his legal requirement under "3 U.S. Code ยง 15 - Counting Electoral Votes in Congress" which requires: "Upon such reading of any such certificate or paper, the President of the Senate shall call for objections, if any. Every objection shall be made in writing, and shall state clearly and concisely, and without argument, the ground thereof, and shall be signed by at least one Senator and one Member of the House of Representatives before the same shall be received."
Incorrect. There were two objections filed; one for the Arizona vote prior to the rioting and Pennsylvania after Congress resumed their meeting. Pence asked for objections to every state, as the law required, but objections to the electoral votes of Georgia, Michigan and Nevada were not sustained because only House members and no senator joined the objection.
Because they could not resume in session. It was not possible for them to speak as a body because the session had ended, and all the @$$holes who could call a special session refused to do so.
Prior to this Ted Cruz proposed a 10 day review period for the states in question. Where was Pence then?
I watched live when Congress returned on the 6th. I watched the incredulous looks on republican senators waiting to object being gaveled into silence and taking their seats. This was the first punishment metted out to the "insurrectionists".
I don't know why Pence turned his back on the Constitution, the law and 75 million of his voters; but he did.
I don't know why Pence thought he would benefit from leaving this open wound to fester; but he did.
History will show how poorly he chose.