Many operators outsource their takeoff performance information to a third party provider. That being so, it is vital from the flight safety point of view to be aware how far the surveyed chart is valid for. You could be left in the lurch if you assume all runway analysis give you safe terrain clearance until MSA in IMC
Well, that is certainly true. It must go to the point where you can either clear en route obstacles or return/divert. Knowing which is essential knowledge for sure.