The raidbosses were the same strength as they were on dmm, its just that over time you should expect the bosses to get stronger is all. At the time we had the last one, 12 blooms were supposed to be out. We just have some strong whales here because of the deals. I would still expect raid bosses to still get more difficult for people to kill as time goes on and we slip further behind on the number of blooms we are supposed to have.
Although, whales will always be able to take them down. It's just if you are not a whale, you might have a little bit of trouble if your whale friends get spread too thin. I like to ensure I just have a good list of actives so I don't have to rely on whales, although I myself am bit of one, and thus why I purge my list so often of people who miss a day or two.