Signature worse than TTDS?

Pulled it for my Chasca team so I can use her 2nd and Bennett 3rd so his burst can be up for the entirety of Chascas uptime but it just feels weaker than using TTDS despite the uptime issues and atack stat overinflation. Is the weapon really just bad or am I missing something? It definitely will be better for teams with carries that don't scale with atack but what what char like that even wants Citlali lol