There was absolutely Blackjack at Western in that time frame. In fact it was a $1 game much of the time, then went to a $2 game closer to the end. It wasn’t something you would have played with players jumping in and out with a $5 buy in often. And anyone betting $5+ a hand was looked at with high suspicion.
People grabbing chips and running wasn’t uncommon so they covered the tray and “maybe” the dealer had access to a couple greens. In fact Monet even talked about loaning a guy money to double and not getting it back.
Guessing you didn’t remember it, but they definitely offered Blackjack.
