Sometimes, designers, artists and makers like to create freely and not follow a system. 

If you're painting something for your bedroom wall then sure, go ahead. Don't stick to a process, just go with the flow!

But if you're running a business and working with clients, you need a process. 

WITHOUT a clever design process in place:

• Clients become confused because they don't know what's coming up next or what their designer needs from them.
• The projects goes on much longer than the designer anticipated.
• The client gets frustrated with the designer.
• The designer becomes frustrated with his/her work and kiiiiinda wishes they were back at their day job.
• The client never works with the designer again because the whole process was exhausting and unorganized.