I have to say that I also disagree with a large amount of this. For one not all spells necessarily require words at all and certainly don't require a repetition of 5-10times. One of my favourite lines I've encountered in magic, although largely for the poetic style of it, is "to speak with words unspoken" the words often help focus both you and your energy but not all spell work necessarily uses them.
I would also disagree with saying that ALL spells must be done regularly, it depends very much on the focus of the spell. If it is something along the lines of a money ritual then it probably is best to repeat it however there are probably more spells that do not require such repetition than are. There are spells such as a Honey jar spell that are intended to be started and then left to work there magic all on there own. Even within ritual work there is not a need to repeat every spell, summoning for example bears little point to repeat once you've succeeded in your goal.
As for raising and programming the energy then perhaps spells should mention a bit about this but then prayers to deities often don't involve the direct manipulation of your own energy and at least some of that falls within the category of magic also directing energy into a spell is fairly standard practice and many may simply feel it unnecessary to mention every time.
In my opinion for a spell to be valid needs one thing and one thing only, logic. If a spell sounds realistic then it may very well work for you, if it sounds outside the realm of realism then there's probably a very good reason for why that might be. There are hundreds of practices all over the world in magic involving all sorts of different styles so I wouldn't be quite so quick to assume that there is only one correct way of doing things. Even stating that spells can not work through words alone is partially incorrect, one of the oldest magic forms around is considered to be the power of the name, mostly forgotten in today's society and frankly dubious wether it can still be called magic but words do still invoke emotion, therefore a string of artfully composed words I feel can still be called magic.