That would still suck
He needs to be able to sneak up on people
I don't think Deathslinger needs a lullaby or bigger TR. He's already capped by the range of his weapon. Plus he has a tall model meaning the only advantage a smaller TR really poses with LoS blockers which he can't shoot survivor through anyways.
I don't think Deathslinger or Trickster needs a lullaby. It ruins them.
I would say just give him a 28m terror radius. Would make him unique.
He'll obviously need some compensation measures (buffs) though.
That would be even worse than what they're currently doing. At least with it just being a Terror Radius you'll be able to take advantage of Undetectable.
Would actually hurt him more, since Undetectable perks wouldn't work
He is already worse than Huntress in his current iteration. Why anyone would pick him after this next patch besides wanting to RP as a cowboy is beyond me.