Hi @Olive! Thanks for sharing this feedback 
I can absolutely see how implementing this would improve your Asana experience, thank you so much for taking the time to share this idea with us. You can find more information and helpful workarounds here: Is there a way to complete a task, and pass it on to someone (ie: for approval or additional steps)? - #5 by ceturley
I hope this help! Let me know if you have any questions 