If the baker were only baking a cake then it would be. But these were artistic cakes with a great deal of self expression, so issues of compelled speech are forefront.

Also, I wonder if, as software devs, we'd feel comfortable being compelled to take on contracts we might object to on moral grounds, e.g. I refuse to engage in projects building weapons and surveillance systems. I'd be quite upset if I were to be taken to court for refusing the contract on those grounds.