That's misleading. If you factor in mining rewards, Bitcoin has much higher fees per transaction. A total of $18,000,000 more per day spent on validating Bitcoin transactions than what that website claims.
From the FAQ, it seems like this is not as invasive as fingerprints:
"We selected palm recognition for a few important reasons. One reason was that palm recognition is considered more private than some biometric alternatives because you can’t determine a person’s identity by looking at an image of their palm."