Agreed, and with 11 hardpoints under which to hang such precision-guided munitions (compared to 9 for the F-15E), the A-10 has few peers in that regard either.
The Super Hornet has 11 hardpoints if you count the wingtip stations. And the BONE can carry WAY more than the A-10 AND it has better endurance. The point is, the CAS equation is far more complex and includes far more variables than just which has the best gun system and/or the most hardpoints. Sensors, comm systems, datalinks and more also come into play. I think its short sighted to assume that USAF would have to abandon CAS if they get rid of the A-10.