That's surprising to me—I tend to think of Aries as decisive, right or wrong!

But then, these kinds of things tend to have surprising side effects. For example: my wife's moon is in Taurus, and her thought processes are certainly as slow and stubborn as an ox! But the side effect of this is that she's very jumpy: since her mind takes time to catch up to her sensations, she tends to react before her thought processes kick in. I wonder if the waffling you mentioned is a similar kind of counter-intuitive side effect!