Several top-level commenters are questioning why the restaurant owners would be upset about this. Some reasons are listed in the Verge article:

1. It's causing unneeded additional stress to the business owners

2. It causes harm to their reputation

3. It was done without their consent

4. It's being done on a mass basis for [Yelp/GoFundMe's] benefit

5. The process to opt-out is arduous

It doesn't seem like a ridiculous request that you get the owner's consent before you involve them in some kind of business arrangement.