The point of Tether is that for each USDT there is a corresponding USD in an account belonging to Tether. If Tether were printing USDT to keep 1 USDT valued at 1 USD then they would be violating what Tether is publicly stated to be.
The whitepaper can be found here: https://tether.to/wp-content/uploads/2016/06/TetherWhitePape...
And on the flip side, if Tether redeems any Tetherbuck for $1USD, on demand and quickly and without solvency concerns, why and how could the value of a Tetherbuck ever drop below $1USD?
Any deviation from $1USD value means the market disbelieves one of the above things.
https://www.coindesk.com/tether-claims-30-million-stable-tok...
It's strange to issue a revocation, but then it's also strange to get subpoena'd by CTFC, and to print 850 million tethers in the same month you fail to get an audit through...
A revocation of about 1.5% is just another confounding factor at this point.
http://omniexplorer.info/lookuptx.aspx?txid=24db40680654b8b5...
Specifically, its transaction type is 56. https://github.com/OmniLayer/spec#field-transaction-type
I don't think this is a strong evidence, but if Tether is issued out of thin air, it is somewhat strange to make revocation. Does someone have a good explanation?