Popularity of thw name of altcoins matters but iits not necessary unless thw project is promising and offering a good altcoin to invest, sometimes it matters because investors will look for name .
Actually everything that is in Altcoins or coins in particular is important, both in name and value along with its use, I think all of that is very important, because when someone looks for it on the ranking list, it will be easier and will be better known when someone tells it to people other.