You make a very good point. I always looked at USDT as a great way for people who are taking their first steps in daytrading. Trading Bitcoin/USDT is kind of easy to grasp due to the 'normal' numbers.
A lot of people get easily confused by all the zero's when trading BTC into something else.
Guess it is a good thing to keep the concerns you mention in mind. Better change the USDT back into something else before going to sleep.