If I am not wrong, I do not think this update would be here to stay (as much as I hope it does).
2500 gralats for a 20 damage gun as compared to 200 000 gralats for a 10 damage gun just does not telly. Everyone would end up using shotguns instead of buying new guns.
As everything in Era is all about balancing ( no pun intended

) either the damage would be reduced or more freeze would be added to counter its high damage.
However meanwhile the shotguns are definitely one of the best guns currently so please spam them to your advantage.