I did exactly that and none of it was what I would call too warm at all. And the car was pulling 7.1 pretty much the whole timeUncoiling leads is to prevent heat build up from resistive losses in the cable, it makes it easier for any heat to dissipate.
If this is a typical Pod Point / Rolec / Chargemaster unit with the lead loosely coiled round it then I do not think it will matter. This is quite unlike a tightly coiled extension lead where the inner coils can not lose heat easily and hence overheat and melt, this is what the warnings are about.
If your worried then charge for an hour or so and see if the cables are heating up significantly. They ought to warm a bit - 7kW is 30A or so, a substantial current.
Thanks for the helpful reply!