Drawing an ace speeds up the game and gives the contestant less input from the audience, since they now have to come up with a number on the spot.
But that's not how the ace is supposed to be used, at least not when it's drawn early in the game (unless I missed the part where holding the ace is no longer an option). The ace is supposed to be used as a tool to help you zero in on the price when another draw might put you over. I know even in the latter Barker era it wasn't being applied this way, but that's only a testament to how not-great a game Card Game is.
When an ace is drawn early, it makes the game lame.
I would say Card Game became lame long before that.
If the other two Pricing Games in the half of the show with Card game are one-decision games, the half would go to three consecutive one-decision games which the show probably wants to avoid.
So you avoid it by putting a proper lineup together that avoids this scenario, not by stacking the deck in Card Game to try avoiding a one-hit-kill-or-miss-style playing.
For the season opener in question, since they slotted Golden Road and Plinko into the first half, logic would dictate you wouldn't want Card Game in the second half anyway because you're probably going to running long; and Card Game's length can vary significantly. Swapping out for One Away would have been the better move.