Actually this is just a confirmation of water already previously found. It's nothing super groundbreaking but very significant nevertheless.
It's also the fact that the moon isn't exotic enough for the media/masses.
It's also the fact that the moon isn't exotic enough for the media/masses.
An external source of water is completely unnecessary for this. The idea behind hydrogen as a fuel is that you can react it with oxygen to produce water, which is a lower energy molecule. You can then harness that difference in energy to do whatever. The amount of water generated is equal to the amount of water needed to generate the hydrogen (and oxygen) molecules in the first place. It is a rechargable battery.
H is needed for water (for people) and propellant (for rockets). The rockets in particular are open systems and must be, so need a plentiful supply. If you can find a good source of Xenon, you can use that in some applications instead, but that's probably harder than H since it doesnt form more stable materials like H2O.