It is not difficult to make a super awesome vegetarian or vegan pizza. Actually most traditional Italian pizzas just need flour, tomato, basil, seasoning, and olive oil. This place is trying out some unique ways of loading a pizza with a ton of vegetarian options. Personally, most of the flavor combos were just too much. Good food should be simple and emphasize the few ingredients used. More is not always better, and the pizzas here have too much that the pure taste of individual ingredients were lost.
Also, they seem to use vegetarian fake meats a lot. Since these fake meats don't have the natural fat of real meat, they can taste very dry if not properly used. Yes, the 2 different pizzas I tried were very dry.