I already gave my thoughts on radiation and economics in my original comment. I agree those could be significant challenges, but ones SpaceX has a plausible path to solving. Starship in particular will be key on the economic side; I find it very unlikely they'll be able to make the math work with just Falcon 9. Even with Starship it might not work out.
And it's not just a 1.4x boost in solar power availability. You also eliminate the need for batteries to maintain power during the night or cloudy days (or cloudy weeks), and the need for ground infrastructure (land, permitting, buildings, fire suppression systems, parking lots, physical security, utility hook-up, etc).