Most places do not allow even money on 6/5 ploppy ripoff
When you have blackjack and the dealer shows an ace, do they offer you "even money?"
I actually studied the 6/5 game when it was first gaining popularity. Policy varies from casino to casino, but most do not offer the even money option. I have seen it confuse and annoy ploppies who are accustomed to the normally stupid play of taking even money.
With the massive house edge, it's typical caisno overkill to deny the 6/5 ploppies this little option. The good news is that it may actually drive some ploppies away from the 6/5 game, because they are used to accepting the sucker's even money, and now they get NOTHING on some of their blackjacks.