Must know more about who is behind this website and what Lucy's involvement is before I can make a judgement.
Most adult companies pay models for individual shoots using a so-called model release contract, like we at Flying Rabbits Video do. Other arrangements between producers and models are of course possible, like exclusive contracts for various amounts of time and money for a website bearing a model's name or arrangements in which a model takes a share of the profits, to a model being in complete control of a website she has set up herself, taking all the profits if any are left.
All these arrangements have positive sides but also negative sides, for both the poducers and for the models. There is no perfect, no ideal modelling contract or business structure.
There is no law to my knowledge that forbids producers to set up a website bearing a model's name of whom they have shot a lot of material in a short period of time, but such a website has and will get very little credibility nor much members if a model would not be involved any further in any way with it.
Using another name for Lucy on this website doesn't add much to it's credibility in my opinion. It's a (negative) sign on the wall as we say in my country.