From a certification viewpoint, I don't think that we have any quibbles ... whether it is 7kt, zero wind, or whatever small wind value is not a real concern (the manufacturers, naturally, will always push for nil wind as this gives the nicest field length figures for marginal runways) ... provided that crews are AWARE of the problems which can arise in a cross wind failure situation with a low speed schedule ....
The point which irritates me immensely is to see crews head off down the runway with minimum speed schedules in a strong crosswind when there is no need to expose the operation to the attendent increased risk ... fine to do so when there is no option and accept a risk .. but why do so when there is absolutely no need ? ... this is quite beyond my risk management attitude to life, death, and the universe ....