I'm not in the "correct vs. incorrect nickname" contingent anymore because I don't believe it is possible to describe nicknames that way. They can be regional, vary by native language, widely used, or personal to a single person, be the former name still being used as a nickname, but they can't be invalid. Millions are sold with a tag that says Pothos.
A lot of plants are called by their former genus names, like "annual Vinca" for Catharanthus roseus, "Geranium" for Pelargonium, people never stopped calling "Coleus" by that name, through its journey around other genera, "Aralia" for Dizygotheca/Schefflera/Plerandra, and a lot of others. A lot of flowers that are not in the Lilium genus are called lilies. It's very common for multiple plants to share a same nickname. And for a single plant to have multiple nicknames.
If one wants to refer to a plant to the exclusion of all others, the botanical epithet is required, which can entail an list of a bunch of former names, synonyms, and footnotes about where each name is or isn't "accepted." I like to include as many nicknames and synonyms as I can remember when I refer to plants so people will have the info, if I'm in the mood for the typing at the moment.
It doesn't make sense for plant lovers to have this kind of friction. Aren't we all just here to appreciate and share our plants?
I went back to calling my Schlumbergera truncata plants Christmas cacti because that's what everybody else calls them and I felt pedantic "correcting" people to tell them it's really a mislabeled Thanksgiving cactus. What's the point of that? It might be fun & interesting to discuss a little history, that there was a different plant that bore that nickname originally, but I don't enjoy and don't believe it's appropriate for me to tell anyone they should or need to call their plant Thanksgiving cactus instead of Christmas cactus, or Epipremnum instead of Pothos. There's a difference between providing additional info and asking someone to please stop doing something that isn't wrong in the first place.
There are a lot of variations when it comes to Pothos leaves. They are very popular. The Scindapsus ones have a reputation for not being as easy-going as the Epipremnums.