I received these statements from a TOMY employee:
“You can display the fully assembled ship on the main stand, without the saucer swoosh support or the clear support post”.
“Our Product Integrity Team is hyper-cautious and insisted that we include the other supports”.
I added:
“I assumed the swoosh was mainly for saucer sep mode” and his response was “correct”.
I believe this is more a precaution against being knocked over vs. long-term damage to the model.
But as mentioned, since this is second hand information it can’t be considered official instruction from TOMY.