BitPay are too difficult to use, they use their own weird version of an unsupported payment mechanism. They'll "win" nothing except bad publicity, and the Great Lakes Science Center will end up cancelling the service because noone will use it
For desktop users it requires some level of effort, but most competent mobile wallet clients easily let you scan the QR code and clear the payment. I personally use the Electrum mobile wallet and it actually works well.
I prefer to not use BitPay, but some sites don't offer any payment options that are viable for me, because I'm not using a credit card or PayPal. I'm forced to stick with BitPay until these sites switch to Coinbase or something else.
It actually surprises me that merchants still choose BitPay as their main gateway. Coinbase has a greater coin selection it allows merchants to accept, which instantly translates into more potential income.
Banking can't be used as an excuse since Coinbase has that side covered way better than BitPay does.