I almost always roast the seeds when using fresh winter squash. Great snack and attractive garnish.
Using a oil mister or spray olive oil to coat the phyllo may create an oily sheen around your work space but it still takes much less time than brushing.
Before roasting if using a thin skinned squash like delicate (Or my mini pumpkins) you can cut a few thin slices to roast as whole rounds and use for garnish when baking.
Savory Pumpkin Phyllo Tartlets https://www.recipefiction.com/2016/09/savory-pumpkin-phyllo-tartlets.html