How can something be seen to be safe for the future based on its current standing ? Just because a stock is trading at a good price right now doesn't mean its safe and will continue to do so in the future. You should read up on tether and the accusations made against it.
An audit was recently made and Tether had only 74% asset/cash to back up all their Tether IIRC
Tether has been flagged a huge red big flag by the crypto community for quite some time because of how shady and non transparent they is
I feel even 74% is too big of an amount, I expect the number to be close to 40%. I wouldn't trust an affidavit by their lawyer though. An actual audit companies need to look into the numbers.