They certainly do not want the humiliation of a healthy control group.
That has been my opinion as well.
Thinking it goes way past simple humiliation.
If it can be shown that the vaccines were pushed for purely political and Pharma profit reasons to the detriment of cheap and effective therapies that could have put a stop the spread of the pandemic in March - May 2020 time frame, the economy would never have been shut down and hundreds of thousands of lives would have been saved.