It's not just large amounts of liquids: it was my understanding that this is both a restriction on large amounts of liquid, but particularly on large containers needed for an explosive of sufficient destructive power.
You could always easily work around the liquid amount restriction (multiple containers over multiple people), but if you still need a large container, it becomes harder.
I don't know if this is true or if a resealable plastic bag also works, for instance (that would be funny, wouldn't it?).
I am not sure any of it makes real sense, it's just a variation of the "why" I picked up somewhere (that it's both).
But yes, that's easily worked around in the manner people brought up already (I did think of duty free bottles, but not camera cases, that is a good one).
Alcohol is flammable around 40%. French cooks aren’t using overproof brandy to do flambé.
Gunpowder doused in alcohol is, very famously for people interested in the history of rum, flammable if the alcohol is around 57.1% or higher, but straight alcohol/water without gunpowder is flammable at a lower strength than that.
You could always easily work around the liquid amount restriction (multiple containers over multiple people), but if you still need a large container, it becomes harder.
I don't know if this is true or if a resealable plastic bag also works, for instance (that would be funny, wouldn't it?).