I wrote about this recently - the writing IS the point, it's how you figure out what you actually think. If the robot does the writing for you, you cannot check its work because you didn't develop the understanding that is necessary to define "good."
A summary of notes is not a synthesis.
productpicnic.beehiiv.com
The process is the point
Using LLMs to rush the design process to the output at the end cuts out the very feedback loop that makes design worth doing in the first place.