All depends on the definition of the exploit. The Engineering exploit that people used to get level 5 mods using level 1 mats, the Skimmer and CZ massacre missions were certainly exploit holes that needed to be plugged. Those were obviously bugs that gave people an unfair advantage and they knew it. In those cases, some kind of sanction must be considered.
Its the 'Exploits' where its pretty obvious that the devs have missed the use case but that are still legal that cause a 'grey area'. They're not really bugs, but design oversights. In all these cases, I think that it's OK for them to be used, but if Fdev care about the future of the game, its up to the devs to plug these gaps. Things like the Robigo Run, the Healing Beam or the exploit mentioned by the OP has to be resolved by changing mechanics. I do wonder if the Auto-Target option should be removed from turrets because both the OP's issue and the Healing Beam issue rely on it.
Its the 'Exploits' where its pretty obvious that the devs have missed the use case but that are still legal that cause a 'grey area'. They're not really bugs, but design oversights. In all these cases, I think that it's OK for them to be used, but if Fdev care about the future of the game, its up to the devs to plug these gaps. Things like the Robigo Run, the Healing Beam or the exploit mentioned by the OP has to be resolved by changing mechanics. I do wonder if the Auto-Target option should be removed from turrets because both the OP's issue and the Healing Beam issue rely on it.