Something I've noticed recently is they are getting quite fast and loose with the "natural flavoring" terminology. At first, I thought that something with Sucralose was considered to be naturally flavored because sweetener isn't a flavoring according to some legal definition. But then I saw something with artificial flavor listed in the ingredients, so my revised hypothesis is it must be legal now to say something contains natural flavoring even when it also contains artificial flavoring. If your reaction is "this is technically correct", my objection is that it's vacuous, since everything technically contains natural flavoring.

One of my points here is also that I don't blame the order picker if they got something with Sucralose by accident.

Sucralose is lab made, but stevia is not, so there’s that.

And is lab made vanilla or mint considered natural flavoring?

I've speculated that vanillin is the "artificial flavoring" on many ingredient lists, but I never see it specified explicitly.