Let me be a dissenting voice. I could commute on that bike. I'd add fenders, a bit narrower tires, bar ends, ditch the suspension seat post and let er rip.

If you're in traffic, wear his vis neon lime green, nothing else compares. If you're a good driver, you recognize the need for mirrors, same on a bike. Head mounted is best as it's the most efficient. Carrying gear would be easier with racks and bags rather than a back pack. I never much care how light I am when commuting.

Have a back up plan if something goes wrong. Maybe somebody you work with or your spouse could pick you up (that's never happened to me!).

And lastly, which you've likely considered, you could always consider a partial commute on days you may not feel up to the whole thing.