(Apologies to any readers in advance - this became a TLDR - so I used in line spoolers to reduce some of my elaboration for those not interested.)
I write, professionally and for fun.
Professionally - there are defined goals, timelines and an identified audience to reach/teach, for example.
This kind of writing is very much a 'do the task and move on, other tasks are coming.'
When I write for fun,
I am actually writing multiple stories at the same time, allowing my creativity to take me where it will for each of the stories I want to tell.
If I find myself spinning my wheels on Story A - I set it aside and bounce to Story B, letting my brain chew on things in the background while I work on a different story.
Since these stories are not my livelihood nor am I writing to meet anyone else's schedule, I am not concerned about pages written/chapters completed by a certain month of a given year.
My script has changed in Every story I have written/am writing, but why make changes... :
I come up with a great scene for characters who have grown in my mind and the telling of one of my stories and I need to make adjustments to earlier parts of the story to better support the scene - I want the scene to make sense against the backdrop of the greater story.
I learn something new that has bearing on how I was telling the story and I need to make adjustments to keep the story realistic for the world/timeframe/technology level it was written for.
I realize that my protagonist is too wishy washy or has suddenly become James/Jane Bond with no discernable path on how they built those skills; I need to better define what motivates them and then rewrite earlier scenes to support the type of protagonist I want this person to be/better explain origin and training so that unusual skill sets fit with the story instead of turning it into nonsense.
Same as the above for an antagonist.
For me - the greatest chance for burnout comes from forcing myself to write creatively but putting a short leash on that creativity and limiting it, like forcing myself to work on a favorite story no matter what.
Writing Does involve discipline, but it also involves an awareness of self so time is spent wisely.
Hit a brick wall in the writing or creative process, shift gears and go to a different story or work out, cook, clean, do laundry/any of the other tasks that are part of day-to-day living, so you give your subconscious a chance to work on finding the door through the brick wall.
Ocean has said that part of how he avoids burnout is he works on SG and WIAB concurrently.
This is what works for him.
I trust Ocean to know what works best for him just like I trust myself to know what works best for me when it comes to avoiding burnout.
You claim that WIAB is the reason Ocean is experiencing burnout.
I don't believe you and I KNOW you cannot back up your statement with facts.
Trying to claim that you know Ocean better than he knows himself - which is the only way you would know better how to combat his burnout than he would - is ludicrous.
It's okay to want more of SG sooner - I think that matches the desires of almost everyone here on this thread.
If that is what is behind your statement, I recommend using different words and just own what you are hoping for.
Cheers!!