Even if you didn’t have safety zone, 1-100 bosses are super easy as they were designed to be. Why look at safety zone and consider it OP when a psychokino can still just kill bosses with psychic pressure and have 0 int as well as stun the boss, or krivis can use Zaibas with the multi hit attribute and take down bosses in all of 10 seconds. (assuming your not under leveled for the bosses, as nearly everyone was for iCBT).
Safety zone is fine. If you want to nerf it because of the easy 1-100 content, then you might as well nerf every class that has an incredibly easy time with the early game bosses, even though it all balances out past 100, when the game scales up in difficulty and time taken to progress.
1-100 is legit a tutorial/beginner part of the game, and the quicker people understand that, the faster they’ll understand things like EXP problems (controversial), skill scaling, and cooldown problems (which are non-existant really).