I don't see any space for 50,000 on the street with one stage only. Maybe they should move the event into beach next year.
Reminds me somehow similar events being made some 2 times a year on Kosciusco Square / South Molo in Gdynia (with 50,000-100,000 people every time), but the Square is much bigger than any street in Haifa.
the whole idea is that its a regular street not on the beach or on a promenade, the street is very long so theres space but not one stage, theres more but also the music is played to all the street.
But I agree that they should think of moving it.