The problems Ves had with the Pale Dancer came from its corrupted vision.
"If you analyze its specs, how it fits with Venerable Xie's abilities, and look at its intended vision, you can see a clear underlying thread running throughout its entire design. The vision for the Pale Dancer has been crooked from the start. The Senior Mech Designer who designed this insidious rifleman mech failed to adhere to the mech designer's creed. Do you still remember what that's about?"
"Uh, it's that phrase about how mech designers should cater to mech pilots as if we're their slavish servants."
"Something like that, but not so severe. The point is that mech designers have a responsibility to design a mech that benefits the mech pilots the most. This especially applies to one-on-one commissions to design a custom mech involving a single mech designer and a single mech pilot."