I have flown for 3 companies operating cat 2/3 aircraft and they all required you to be fully configured, ie landing flap plus gear, at Vref, weight dependant, typically 120-135 kias by the final approach fix.
By asking the crew to maintain higher speed until 4 miles (1200 aal) during LVPs you are significantly increasing the work load. At this range/height the crew have additional checks and calls to carry out not done on cat 1 approaches.
I understand the need to maintain a constant well spaced stream of aircraft, particularly in busy periods, but I think during LVPs this has to take a lower priority to that allowing crews to establish a stabilized approach.
I would welcome any other controllers thoughts, other than HD, on this as it seems to me a new phenomenom.