A few questions which I think are worth considering when looking at this:
1) Do you need to know why a routine works, or just that has worked?
2) Imagine two identical routines which are very basic and produce results. Routine A is simply the basic routine, Routine B is the same basic routine plus a scientific explanation breaking it down. Which is more or less valid to you, which is more or less what you'd go to?
3) Is it better to have no explanation, or a false one?
4) Is it complex, or is it just new to you?