Well, I certainly wouldn't pass up on learning the information if I had the opportunity to -- I can't say for sure that you urgently need to learn them, but it really can't hurt to know more!
That sort of thing just requires practice. The bright side is that if you learn them, you'll at least start learning the contexts in which the Kanji are preferred over the kana and vice versa. At least if you learn them, you have a chance of understanding it. You won't if you don't pick up the Kanji though. I know I'd much rather have tools that I don't fully understand instead of not having them at all.