I'm not sure about RN airships, though I could see this being a driver for fighters with anti zeppelin guns such as the COW gun and for improved high angle mounts for light guns - I could see 47mm guns being picked to deter attack because they'd outrange the 37mm maxims, with the maxims used when directly under attack. I can't imagine a lot of hits, but if they disturb attack runs and drive the zeppelins higher that's useful.
Both is likely as at this point the RN/RAF was backing airships for fleet support roles and to try and get a good hold on what they could and could not do. I can see that being upgraded since this brings up aspects they had not considered and they also need to find ways to counter it even if the majority consider this "dumb luck" the military can't treat it as such.
The main limitation on ship based fighters is how to get them enough speed and climb rate to engage the zeppelins. Even so, the threat of interception would likely result in hastier and higher altitude attacks (as with the AA guns) so would still be useful.
Very because it's rather obvious the attack took place at a very low altitude counting on surprise at the target, I'd personally leave the hitting the moving ship in as it makes sense at the time given they don't know exactly what's going on.