How does it make Leia look like an idiot? Why WOULDN’T you want to run as fast as you could from the thing that your captain just called “a Fleet Killer”
Nobody knows about hyperspace tracking, so him getting back to the ship ASAP while they jump makes perfect sense to her. It makes perfect sense, period, especially considering how little they know about what the First Order can do at that moment. If they can get away, they should get away, because they’re not really in a great position to take it out right there. As proved by how sideways everything goes even WITH Poe’s plan (which he had ready to go without her knowledge, which is some pre-meditated insubordination, really).
She’s not wrong to want to run. He’s not wrong to want to seize the opportunity. They can both be right, but it’s not always about being right, either. Life isn’t a point-scoring exercise, and The Last Jedi is a story that speaks to that quite a lot.
Leia doesn’t “look like an idiot” there, though.