NOODLE or NOODLES？

“CUP NOODLE” is one of popular long-selling food in Japan.
But I have always felt doubt about the trade name in English.
Because it should be described as NOODLES in the same way as ones sold abroad.
In fact, the plural form doesn’t exist in the Japanese language.
So I’m afraid Japanese people would learn English mistakenly.
I hope they will correct the name for domestic as well.