That would work well but you then lose that Titan's dps as they have to stay near the boss to keep the buff applied. Also depending on the boss moving that close always come with the risk of getting cabal stomped into space. More than anything else I've always felt Shadowshot's advantage over Melting Point is its range.

Monte Carlo would help

Whenever im doing golgoroth i tell the hunters on the team to switch to blood bound since it can kill the thralls while you damage gilgoroth which will increase the duration of the tether overall