The reported Indian response seems stupid. The affected device can freeze at any time, so:
The regulator has also asked operators using B737s with affected Collins rudders to stop low visibility CAT 3B landings on these planes apart from conducting risk assessment and special rudder control training for pilots.
doesn't deal with the problem.
The only temporary safe option is removal of the system. The risk is not limited to CAT 3B landings, it affects all landings of equipped aircraft.