Hey Daniel :) great article (as always).
Being a designer means so many different things depending on where and how you work, then who you work with and for. Your statement is on point and might be a default mindset in the profession, tho it takes a lot of company/product knowledge and transversal collaboration to achieve. Which to me feels more like a goal to tend to team wised than an actual standard to defend. I’d say :
Everyone is a designer (with infinite contexts). Don’t sweat it too much.