What's wrong with being pretentious? Doesn't that depend on the audience? "Wanderlust" may in fact totally appropriate for whatever the stated goal or business case or audience being served is.
What is driving the question? Does the word strike you as pretentious and perhaps you think the user audience will feel the same way?
In UX I believe it it's more important to characterize creative decisions in terms of how appropriate they are based on what is needed. It's all relative to what the audience or user needs.
The other point I would make is that you can evaluate work on this dimension (let's called it appropriateness) in a way that minimizes bias. For example, the word "pretentious" has a negative connotation so by using it in your question you're already editorializing before you've even collected data.
Make sure you're measuring this relative to the representative audience. It could be the case that you are also the user, which makes your opinion valid, but if not then you'll need to put aside how you feel about words like "wanderlust" and focus instead on whether it's appropriate for the needs of your user audience.