In terms of major poskim from the BY area, almost all of them agreed with R’ Moshe about the eruv. Some were because they learned through the sugyah, and others just relied on R’ Moshe’s opinion.
R’ Tuvia Goldstein zt”l, after learning through the sugyah, held that the eruv was kosher. However, out of respect for R’ Moshe, he did not use it, and encouraged others not to rely on it either. The difference would be when there was a case where the circumstances dictated that you could rely on a heter which is not always relied on, but not be mechalel Shabbos outright. According to R’ Moshe, you could not use the eruv. According to R’ Tuvia, you could.
I heard this from a talmud muvhak of R’ Tuvia zt”l.