Tara had speed, edges, ice coverage. One thing she had over caro was control. Hyper presentation style yes, but Tara never stumped around or looked sloppy. For years caro looked like a driver above the speed limit, texting and holding a coffee cup, swerving all over the road.
Yes Tara's jumps were teeny tiny, a mere few inches off the ice, but they had good flow and good air position.
She herself was tiny, which is why I think her presentation often suffered. She was often extended and pointed and stretched in a way other, taller skaters never were. Caro is very long and lean, which is one reason why she often looked awkward and gangly, with Bambi legs splaying all over the ice.