No, orchids aren't complicated, they're just different!

If you think about it, it's logical not to get water in the crown. In the wild a phal grows attached to a tree with the top of the plant facing down so that rainwater will drain out of it. The only food they get comes nutrients in the water running off the tree onto them, or from debris around the roots. Once you understand how a plant naturally grows, it becomes easier to see how to care for it in our homes. Hope this helps.
For your fertilizer, it's hard to judge what is enough or too much without knowing the original strength of it and doage you are basing the 1/2, 1/8 etc on. If the NPK ratio is something along the line of 20-20-20 then you only need about 1/2 teaspoon per gallon at each watering for example.