That's true for a recipe that was developed in a past millennium. Trade secrets are still very much relevant for companies that work with more modern technologies than soda from before the Great War, and a useful protection against competition. Even if you do believe that companies within the US or EU wouldn't touch other's IP with a 10 foot pole due to strong laws, you'd have to be very naive to think this is valid in all parts of the globe.

Edit: it's also trivially not true for trade secrets in the legal sense -- if you upload your trade secret willingly to AWS, it's no longer a trade secret, unless you have extra contracts in place. With obfuscation, you could skip a lot of red tape to keep it secret.

You can't copyright a recipe, the thing reason it doesn't make sense for Pepsi to make an exact duplicate of coke is that Coke is better at selling Coke that Pepsi is, and it's better for them to be a niche alternative some people prefer than to be an undifferentiated competititor. Reverse engineering trade secrets is perfectly legal if you haven't agreed otherwise.