I'm going to agree with you in some limited experience over the last few months. I usually have 2 BS drink coupons and sometimes can't give them to the FA. Sometimes that act like they don't care or take the coupon and rip them up immediately without a glance! On MLK night, I got treated to about 4 drinks by a very friendly FA because it was a "holiday".
I wonder what is up, but I like it! Perhaps some backlash or easing up after putting the poor FA's through hell with the expired/no expiration date coupon fiasco of past years!