In theory, the extreme jump range explorers would be able to easily outrun any. chasing gank squad, then lose them in the vastness of the galaxy. In practice, expeditions like DW dawdle along at a leisurely pace have regular meetings which make them easy to follow. The minimum required range is within the capabilities of an engineered combat ship (especially since the Guardian FSD modules were introduced)
It could even be argued that the pursuing gank squad could potentially do more exploring than the explorers by dint of having to traverse more systems
As for the OP's suggestion, if I was a griefer I would gladly take up your invitation and may even bring a repair limpet along just to ensure that the 20% limit wasn't breached. Then I would enjoy your consternation at trying to fix things with all of your modules destroyed.
It could even be argued that the pursuing gank squad could potentially do more exploring than the explorers by dint of having to traverse more systems
As for the OP's suggestion, if I was a griefer I would gladly take up your invitation and may even bring a repair limpet along just to ensure that the 20% limit wasn't breached. Then I would enjoy your consternation at trying to fix things with all of your modules destroyed.