There are limits to everything. I think what might be going on is the possibility that interest rates are going to go up, on there own, natural market forces, against TPTB’s control or will.
If TPTB have that same thought, it would make sense for them to keep warning everyone, so that when rates finally go way up, TPTB would prefer that the people think THEY did it on purpose and they are still in control of things.
It would be very bad psychologically if the people thought rates were out of control. When any market, gets way too distorted it will REVERSE. Look at Oil. The lower Dollar and speculation got Oil up to $145/bbl, THEN what happened. Too much oil was produced, people conserved, and natural market force took hold and DOWN DOWN it went.
Keep in mind 1970 to 1980. Rates went from 6% to 21% on the prime rate. Gold went from $140 to $800. Gasoline went 25 cents to $1.40.