No, that's not correct. It's not a visual issue. Furniture vases, and the majority of vases around Graal now drop hearts very infrequently. Dusty said this was an intended change, but the rate at which they're dropping hearts is abysmal. People use the vases in houses to heal. No one wants to have to throw 12 vases just to fully heal. Like I said, you're free to go see for yourself. Go to the gnome house/cave in north swamptown and throw the vases the way you normally would to quickly heal. Then go to Azrael's Nightclub in Graal City and do the exact same thing with the vases there. The difference will be extremely obvious.