Pricing seems to be 10x cheaper than lithium per kWh.
The battery has no rare earth metal in it, just common iron, which dramatically reduces cost. The 100hr storage is also 10-20x what lithium is designed for. Downsides appear to be slow charge/discharge and size of the batteries.
It is most likely a hybrid "iron air for long term storage, lithium for spikes and fluctuations" grid battery makes the most sense. These combo setups wouls likely have drastivally better long term storage and pricing then the current norm of "just Lithium."
There is more info about them in this article about another company in the space called Form energy.
"Saving gaza from obesity" was literally one of the pro-Israel talking points a few months ago from a UK lobbyist to justify Israel use of famine as a weapon.