Give the model and the photographer a benefit of a doubt lah. Have a look at muay thai stance pictures on the net in pose. These are professionals.
The gloves above as in the picture are not for combat purposes but for training. If the model herself has been doing Muay Thai for 2 years, but not as a combat exercise but for more of recreation, then the statement about a true fighter is out of place here. If one takes a look at lurker's thread on the Muay Thai, that picture well executed as it is is not without its flaws. So are you also saying that for the guy in that thread, he is also putting practitioner of the art to shame?
Unless you are saying that two fighters in a combative stance, then yes. Probably then, yes, a more professional look in terms of the art is needed.