Uh, I think you are the one now stretching. Tether can meet 74% of their liabilities all at once. Where a bank can only meet 3% or 10% of their liabilities all at once. Tether is way more liquid than a bank.
Tether is more liquid, if you trust that the 74% are actually in "cash equivalent securities" and not loaned to themselves (again), but they're absolutely insolvent.