As other have alluded to, lobbing in is only the method of transportation - the hard work begins after that.
I always alikened it to running a 1/2 marathon in terms of the build-up, inevitable delays when the frame goes t*ts, back on the bus having not slept, lob itself, and then the adrenalin comedown when you realise that you can still talk and walk and have a job to do.
It is genuinely hard work and the guys that do it are those that have proved to others that they will push themselves a little futher when their noses are to the grindstone. The Army does not need PJIs - it is not that hard and no black art despite what those resident in the hangar in Oxon might have you think. There are plenty with the skills that could teach this alongside their other job. Other different parachuting skills included.
So...is this watch company something that might be need reporting to Trading Standards?
Is it being run by a PJI-retd type?
