What is the real reason.
The real reason is because they are not in agreement with the date of Yom ha’Atzmaut having been changed from Iyor 5th to Iyor 6th.
The Rov held that Yom ha’Atzmaut is to be exclusively be observed on Iyor 5th, irrespective of whether Iyyor 5 is Monday, Wednsday, Friday or Shabbos.