Lil' ole Hermit... although he may highlight a period of frustration, he is really just saying "Hey! Slow down, spend some quality time getting organised, and just giving yourself time to think things through!"
What is obvious in the Hermit card - is that he isn't actually locked away in his cell, he's very much represented as being on the move... he's searching, and not at all passive. Gathering information and getting things organised in order that the connections that you seek can be made is the keynote.
The impatience heralded by Hermit can be on two fronts: the desire for solitude in a hectic world being the obvious one; but he can point to the frustration felt as others don't seem to be getting it! (They haven't made the connections you have through that period of introspection... )
In short, although he is definitely indicating a period in which a little bit of solitude would be beneficial, he is a very positive card. Long walks, going on a retreat, or simply a period of non socialising are all recommended - as these will allow things to fall into their proper perspective (and order).
The reversal to me is more about not letting your frustration with others out - as you need time to consider all angles before going in with guns blazing "know-it-all" style. The connection building needs to be completed first - otherwise you are just going to alienate those around you (who you obviously care about - otherwise you wouldn't be bothering trying to ''put them right''...) I can see how it may be put across as ''watch your ego'', but it really isn't about ego - more about the need to get everything clear in your own mind first, before trying to communicate your knowledge, feelings or beliefs to others.
Hope that helps