I would contend that theming a land to a specific studio is not a good idea. And yes, that goes for Pixar Pier.They made a mistake making IP specific lands instead of Studio-specific lands.
When you use a studio as a theme, then you are locked into just those IP from that studio. An IP from a different studio may be perfect to match with an IP from another studio... but nope. They're different studios, so, you're forced to keep them separate. Sorry, Merida, but you can't be with the Disney princesses in DAS-Land because you're from Pixar.
Also, you start to scrape the bottom of a studio's barrel if you limit yourself to just that studio for 'the land.'