I'm skeptical of this excuse, considering megacorps don't seem to be this zealous about defending their trademarks. For instance, Mcdonald's doesn't seem to mind people making youtube videos on how to make big mac sauce[1]. There's plenty of videos that don't even have the "style" qualifier and even go as far as claim it makes the original sauce.

[1] https://www.youtube.com/results?search_query=big+mac+sauce