Well, I wonder what the hell did I confuse this time?
The fact that one can complete a visual approach in IMC.
The ICAO communications failure procedures and the case of both the UK and Germany getting IFR flights within the system to adopt the IMC procedure regardless of conditions is based on getting the flight to the holding fix of the destination aerodrome in a predictable manner not to help the pilot who has the communications failure but to help predict what they will do so that all the other flights in the system can be separated from the comms failure flight.
Imagine a B737 at FL370 has a comms failure over London and adopts the VMC procedure, screams down through all the levels and lands at Heathrow!! - Probably not a good idea. A better idea to get them to use the IMC procedure which makes it possible to predict what they will do.
After the IAF, or when flying a visual approach there are so many variables in the situation that it is impossible to predict what one would do.
Important things to think about are;
If VMC - Do you want to go back into IMC and route to a fix at a level that other aircraft may be holding?
Do you think that if at Heathrow a B747 starts a missed approach and is heading off to the NW climbing that they stop all further approaches because if that B747 goes to CHT at 3000ft and another aircraft has a comms failure between BNN and landing they will do the same...........the point being that the comms failure procedures do not cater for saving the ass of the pilot who has comms failure but putting something in place that saves the ass of everyone who does not have a comms failure.
Which means that if two or more aircraft have a comms failure it is possible to have a metal rainshower if both follow the procedures exactly.
Therefore the fact that one is making a visual approach has no effect on the comms failure procedures.