Before modern means of travel, I wonder if it was impractical to convene a lame duck Congress, and if that’s why the authors of the Constitution did not worry about it.
I’d say that’s exactly it, the session was strictly for a national emergency.
It was no threat because the majority seldom consisted of zealots. The question is: if the Dim take a thumping in November, will the more moderate ones let Plelosi get away with a coup de main?
The Lame Duck Session seems to have earned its reputation from that oversight. One would guess that the powerful original states could scurry back down to DC quickly and make a quorum before the coaches rolled in from the west or the south.