Coupled or not, a tailwind is going to cause a problem for the following aircraft.

LAX often has east winds down the final until descending below about 1500-2500 feet, even though the approaches are being flown to the west runways. 10 tailwinds are not unusual at all there, which means that previous jet's wake is likely hanging right on the glideslope, rather than descending below it. Following a Heavy or a Super while at minimum spacing, I'd go a 1/2 dot high too.