So who instituted Lag B’Omer- not the Knesset or the Rabbanut! According to all minhagim, whether partial or full, 5 Iyar is time of mourning and Lag B’omer a time off from mourning. Chasham Sofer is apparently not the accepted opinion regarding Lag B’Omer. Does the obligation of establishing a day of hodaah trump the accepted minhag and its accompanying halachos? For argument’s sake, It could have been another date- say the date of the UN vote on the partition plan- now that was a miracle! – or the date of the truce “ending” the War of Independence. 5 Iyar was actually not such a happy day- all the surrounding Arab countries declared war, threatening to destroy the new state, many people – soldiers and civilians- were killed in the war that officially started that day. Am Yisroel’s deliverance did not come on 5 Iyar, it was a political moment that was chosen because it marked Israel’s independence, not its salvation. While Religious Zionists have redefined its meaning, and B”H recognize Hashem’s role in the miracles of Israel’s founding, that really is not what Yom Haatzmaut was all about.
If you look back at my post, I mentioned Purim Meshulash- the point was that Chazal did change things when necessary. Obviously, it was not felt necessary for Lag B’Omer.
Of course that was before Meron became such a happening. The solution then is not to change Lag B’Omer but to change the celebrations at Meron, which as I stated, can be done and it seems will be done this year.