How does Paul Rogers's technique of using fill lighting outperform traditional methods?

I’m Paul Rogers from That Creative CEO, and here’s the deal:

Traditional setups often lean on a single key light, which gives you drama but also harsh, distracting shadows on the face. It looks cheap fast, especially on phones and vertical video.

My approach leans on intentional fill light to:

• Smooth those shadows
• Keep detail in the darker side of the face
• Make skin and eyes read cleaner and more “cinematic” on camera

Want me to break down a simple 2‑light (key + fill) setup you can copy at home?