I suppose it could be false advertising to say you support a standard but only in a way that's meaningful to your software? As a 3rd party developer, it's hard

I suppose it could be false advertising to say you support a standard but only in a way that's meaningful to your software? As a 3rd party developer, it's hard to demand another company build something into their API, based on standards or otherwise. The best you can do is throw around your market share and lean on your mutual unhappy customers to make it happen.