The best part of any FromSoft game is that technically you don't need to use a multitude of quick items. While everything has a use and a context, you are encouraged to find your style. However, you will be making the game more complicated than it needs to be if you don't use Snap Seeds when they're helpful. It's up to you to create your play style and determine which tools you'd like to implement into your toolkit but never discount any item these games give you. Everything is here for a reason.