No, no one does a major project with no plan.
That is a Trump hallmark, though.
no one demolishes a large building without a demolition plan, and an asbestos remediation plan, including tenting the site, a remediation plan and a hazardous waste disposal plan. (dumping building material waste into the Potomac River to expand a golf course is not a plan.
It was obvious from the start that there was no clear plan for the ballroom. AI generated drawings were substituted for real plans. The drawings didn’t match one another. The gigantic size numbers didn’t either.
I fully expect that the East Wing site will be an empty wasteland when Trump exits.
As with most things Trump, arrogance and mismanagement are key elements.