Titles create less ocmmunication saturation, because of the specialization, titles make people feel that they are above doing a task that isn't in their scope of the title. Titles can be a positive thing on resumes and other applications for applying to a job or college.
It is just to get people unblocked in what is stopping them from their task and to make sure progress as a team is being made
Multitasking is wasteful because of how your brain functions, it generally can only work effectively at one thing at a time, and it takes your brain time to switch gears between tasks if you are multitasking. In my own life I refuse to multitask when driving (Mainly regarding my phone, turning the radio up or down is different), I don't feel like I can drive safely if I have a phone pinned between my cheek and neck or texting looking away from the road for multiple seconds at a time.
If you need a hero to get things done your planning failed.
You should only plan what you need to, enough to keep working but not too far in advance, as a year long plan won't remain accurate and applicable.
Overall I learned that less is more sometimes to the amount of hours you contribute, and that multitasking is even more of a waste of time than I already thought it was.