Wow, the power of women’s emotions is such that even shaping a robot like a woman causes it to be all unreasonable and stuff. Good think Hank Pym didn’t build Ultron into a woman shape; imagine how awful that would have turned out… Oh, wait…
Sorry for being a bit bitter. The ’60s wasn’t a great time for female characters; apparently not even metal ones.
As for your interpretation, to be honest there’s a bit more to it than that. The Metal Men’s eccentric personalities were due to a random quirk in their original designs that could never be duplicated. There were a few occasions where one or more of the members were seemingly permanently destroyed and Doc Magnus attempted to recreate them, but each time that was done, their behavior became completely inhuman, emotionless, and robotic. So Platinum (“Tina”) acting like a bad 1960s female stereotype wasn’t due to her looking like a woman. It was a programming bug, for lack of a better word. Moreover, while Tina’s personality (insofar as her behavior towards Doc Magnus is concerned, anyway) may be horrendously dated – to say nothing of Mercury’s frequent sexist comments about her – to the original writers’ credit, she most definitely wasn’t a damsel in distress. When it came to battlefield performance and bravery, she was almost always every bit as capable and competent as her male counterparts.
Call it my own programming bug, if you will, but I’ve always found robots that fall in love with their creators cute. Keith Giffen and J.M. DeMatteis had a lot of fun doing the Metal Men backup stories in the last “Doom Patrol” series (which was about the only part of those books that I actually enjoyed).