Your complaint seems to be about one sentence on the marketing page for their original pre-order campaign in 2013 (as seen at the internet archive here https://web.archive.org/web/20140506133101/https://campaign....), which was based on a different formulation of their product without the current problematic ingredient, and didn’t list any detailed nutrition information at all, instead explicitly directing curious readers to their other web pages / blog posts for more information (including a full list of ingredients with the note that the product contained soy).
I don’t quite understand why you think their new product version in 2016 should be considered to retroactively make their (no longer existent) page from 2013 false advertising.