Being IFR doesn't excuse violating "See and Avoid" when you're VMC. Regardless, and he violated the paraglider's right-of-way (unpowered has right-of-way over all else).
And another. An aircraft being overtaken has right-of-way over the overtaking aircraft. So that’s three screw-ups (minimum) for the Cessna pilot.
I was being facetious and satirical.....
The airborne equivalent of “wheels yield to heels”