“Halacha is plain and clear about shabbos + yom tov, we do not say sholom aleichem nor eishes chayil.”
Really ?!? Can you quote me a legitimate source? Shulchan Aruch? Mishna Brura? Aruch HaShulchan? Ben Ish Chai? Kaf HaChaim?
Let’s be very careful about making statements like that in this (and other) forum(s).
I made it clear that very few people have the practice, which should imply that it is a Minhag by most not to say it.
As a matter of fact, I have on my Shtender a wonderful new Haggada Tiferet Tzvi by the Sphinka Rebbe and his Talmidim. It states the Sphinka Rebbe was noheg to say Shalom Aleichem, Eishet Chayil and part of Atkinu Seudata on Leyl Pesach, referencing the Arugat HaBosem in this regard. I think that the Sphinka Rebbe was well versed in Halacha.