+1 to this thread!
I can understand this situation being feature intended but it would be a shame if it remained so for so many players.
Personally i would love the option of only having one TAV so my play partner can play any of the origin characters because they are so much more interesting narratively to us than the opportunity to have a second 'main' character.
If it turns out this doesnt get changed thats fine i suppose, ill play it the same way i did neverwinter where you can only hire one additional companion per player but i would really love to have 3 origin characters rather than 2 to explore with.
Ive played all the dnd games coop (that had coop) so this really wont be a single player game for me i just dont games like that anymore. Been waiting patiently since bg3 was announced so happy to wait a little longer if this change does end up on the roadmap.