Well yeah, the only reason Toffee came back in the first place was because Star fucked up and lost the spellbook and split the wand, and now that Toffee had to be killed, Eclipsa's back. If Star had listened to advice, for example buff frog telling her that she needs a plan, she'd have gotten Marco out without needing to split the wand and put Toffee in the source of the magic.
Only starfags with next-level delusion fail to see that even though she managed to come back from the dead with completely unexpected deus ex machina plot armor powers and save the day, she's still a spaz who repeatedly and consistently fucks shit up for herself and everyone around her because she thinks she knows best, she doesn't want to put in the base effort, doesn't listen to advice, doesn't think of the consequences of her actions and doesn't think that plans or duties or such are "her thing".
Star is absolute shit at making decisions. It's freak luck that she didn't die but turned out to have so much natural crazy-ass power she was able to dip down and return from purgatory and recreate the wand - but that's got nothing to do with her planning or the cleverness of her decisions, it just happened, she didn't know she was able to do it.
Acting like you should trust Star's decisions becuase it worked out with Toffee is wrong. Star's decisions got her killed, the magic destroyed from the world, her family and kingdom ruined, and Toffee in power. It's her uncontrolled freaky power she didn't know she had and Glossaryck's prodding that managed to bring her back to win the day after all - but her own decisions are still shit.