General Discussion

Whether that would be the final breaking point in Iran's descent towards Putinistic 'let's bomb maternity hospital' type scheiss.

That didn't happen. But I'm not ruling out that the 'attack' on the desalination plant was parallel to when Israeli interceptors took out a Muslim-fired missile--whether God's Party, ZEAL, or the Iranian Ayatollah Shi'ite Shura as the agents of intended Israeli corpsehood--and it was clear that it was the remains of the interceptor-intercepted system that did the damage. Moreover, had the missile accomplished its goals, the death/destruction/etc. would have been worse. Few to none that I am aware of claimed it was the Israeli military intentionally destroying an Israeli apt. building.

Then again, had it fallen on Arabic speakers or Muslims, all bets are off.