When i first started the play test i absolutely agreed with you, i HATED the scarabs, but after realizing you just have to walk and shoot them (a level 7 crossbow, crow hat, crow arrows, archer perk, one shots them) and that yeah, the most valuable item in the game should be hard to obtain, i started to appreciate them a lot more. I will say that their detection range is broken rn, if one of them is down in the ravines and you stand above the ravine, they will detect you and flee, even if you're 30-40 away from them.
quick tip for hunting them, 1 always spawns in the shieldbug area and due to it being an enclosed area, its a near guaranteed twinkling shell as long as you dont mess up. think they respawn every 3-4 days