Yes. Changing from 3:2 to 6:5 payouts on a player blackjack is a very significant change. A post on this site says that NCL has already made this change. Postings on other sites indicate that this change is appearing on other major lines. I am hoping that HAL will hold off. (When some other lines introduced CSM’s (continuous shuffling machines) at their blackjack tables, HAL did not.)
Serious blackjack players, who enjoy the challenge of playing perfect basic strategy, will not touch the 6:5 game.