When you describe it as a meme to get people excited as an alternative to having them stay at Twitter and Facebook, then to me, that counts as marketing.
Getting people excited about doing something based on a picture that is substantially false, that's an issue to me.
No different than if some Facebook cheerleader started putting out memes about how people should drop Fediverse for Facebook because Facebook is so much safer than those distributed punks.
Get people excited with an honest portrayal of the platform, and if the platform isn't good enough to be excited about, well then.