In any case, this is good for bitcoin if the A’s will begin to accept real bitcoins after the promotion. However, bitcoin’s volatility cannot make this longterm sustainable. The A’s acceptance should be made through a processor where they accept the dollars for the payments made in bitcoin.
Let's say it is a market test, if it going well it's not possible they make it long term.
There is presently no other method because the volatility is higher than the price of a ticket hehehe. Also to use bitcoin for small payments is also problematic during days of high fees. It appears that many people might be disappointed if they came to bitcoin to use it as a medium of exchange.