The Gid Hanoshe Until This Very Day

[From the parsha sheet מעדני אשר from the section written and sponsored by my beloved friend and chavrusa, Banan Shel Kdoshim, R' Mordechai Ziskind Hager Shlita]

It says in the pasuk in this weeks parsha על כן לא יאכלו בני ישראל את גיד הנשה עד היום הזה - Therefore the Jewish people may not eat the gid hanoshe ["sciatic nerve" in Latin] UNTIL THIS DAY.

1] All mitzvos and aveiros are until this day. Why does the Torah single this one out??

2] Will this aveirah be in force לעתיד לבוא?