Imagine your manager takes the team out for a working lunch, and you basically can’t order anything except for a garden salad from the menu. You have to be at the lunch, but you cannot order like a normal person. That’s wrong.
Once again to reiterate, they are not limiting your choice, they are limiting what they will reimburse.
So to make it a proper example: what if your employer had a job benefit to reimburse gas & electric car expenses to visit clients, and then later decided to stop reimbursing gas.
Also, considering WeWork is taking this stance, if a WeWork boss takes you to a restaurant whose only vegetarian option is a garden salad, then she's totally trolling you.
edit: updating my analogy since i can't reply to your nested comment (not sure why)
Edit: Since my comment no longer makes sense because you completely changed yours long after I replied to it (not a cool thing to do), I think your electric/gas car analogy would be extremely problematic and would likely result in lawsuits. As you know, most cars are gas-based. If it is customary for WeWork to reimburse employees for work-related transportation expenses, and they then changed that policy to favor employees with electric cars, they'd be sued (and rightfully so). The rules are theirs to set - they can either pay for this category of expense or not - but they can't discriminate. I'd imagine that even this vegetarian policy will meet with a few lawsuit threats, but it's so ridiculous that I think they would quietly cave before any suit was actually filed. Imagine trying to justify the cost of defending such a suit to your investors. I'd love to sit in on that meeting.
In the rare occasions where you absolutely need meat it would be available...