Crystal is ltcom gear as it's mark iv. You go +2 per tier. Crystal is a fine fleet action for ltcom and needs no buffing or nerfing. Mob camping happens deal with it. If you're in a cruiser or science ship buy an escort and load it out if you want loot. Healing getting credit can be abused just as easily or more so in other games and it can sure happen here.
I haven't done this mission after they upgraded it and people use ramming speed to kill it. But what if using ramming speed on the Crystal entity will surely destroy your ship. And if your ship is destroyed during this mission, you end up at the bottom of the list anyhow?
It would be more logical if you could only use ramming speed when you're already seriusly damaged. There is no sense in wrecking your ship if you're still able to defend yourself.
It should be more of a last desperate attempt to take down an enemy with you, when the ship would be lost anyway.