Any serious person considering to put money on either memecoins or meme tokens is pretty much aware of that. It is something which one learns very quickly when getting introduced to the market of decentralized assets like these ones.
My personal explanation on why meme tokens are called memecoins anyways has to do with the fact that in the beginning of the history of alternative currencies, Ethereum was not still a thing and most coins had to run on their own and indeoendent Blockchain (as you mentioned) during that period of time there were only memecoins, being Dogecoin the maximum representation of that small trend. The name stuck in the mind of the collective and continues to be used up to this day for both people who know the difference between tokens and coins and by those who do not even use Cryptocurrencies but like to talk about what they have read on the news.

Asomg as one is aware of what one is buying, then there should be no problem on nomenclature. There other more important things to worry about, like speculation, cyber security and the leaders of the market.