Again: so what? How is it better for the FTC to do nothing to preserve a power it never uses, than it is for the FCC to free the 35-40 million US workers whose bosses get to use the US court system to force them to do a job they hate?
The FTC's rule doesn't just ban noncompetes - it also bans TRAPs ("training repayment agreement provisions"), which require employees to pay their bosses thousands of dollars if they quit, get laid off, or are fired: