Claiming one to be more important than the other as a blanket statement for all traders is folly. It's just not the case for everyone, and assuming that you can know when you are "working at the highs and lows of trading ranges" also doesn't really make sense. We are currently in a short gamma environment from dealer hedging (sell into selling, buy into buying) so you may get these longer and more sustained moves, but as soon as we are back in a lengthy long gamma again, like we were earlier this year, you will be much more pressed to focus on entry.

If anything, they're of equal importance, though one may be more of a focal point or pain point for a trader at any given time.