Nawh.
There are different flexes that may be better for some people who ski a lot of park. The flex you choose is based on how you like to ski, and how heavy you are.  My friend rocks booters. They are a "park boot". He likes soft boots, and didn't get them because they are for park, he got them because they fit his feet and he likes the flex. I rock first chairs. Definitely not a "park boot", yet I still lap the park when the snow isn't good. For me, my "park boot" is the stiffest boot full tilt offers.
Just trying to say that companies slap labels on boots based off of trends. If they label a boot a park boot, it convinces people it is the best boot for them because they ski park, when it might not be.  My friend, even though he charges hard in and out of the park, will ski a soft boot because he likes it. I however, will not dip below a 100 flex because I feel like my shin will touch my toes. It's all personal preference.
Buy a boot that fits and flexes right for you, instead of what you think is right when you go in.