Spyre brakes are nice and a 105 bike is not lower end. No reason to view any of it that way.

The actuation is from both sides which is better than most all other mechanical disc brakes. I have set up 4 bikes for friends that have spyre brakes. Really simple to set up, to adjust, and to use.

it's a road bike- disc brakes are overkill, so quality mechanical brakes will be more than fine.