I'm sure the crews in the 8th AF who attacked Schweinfurt in WW2 would disagree. Until the P-51 and P-47 were able to escort the B-17s start to finish, the attrition rate was terrible. Daylight bombing was completely unproductive; the only good thing was that the escorting fighters eventually degraded the Luftwaffe.

The A-10 is not tasked with SEAD. The only weapons it could use in that role would be Mavericks, CBU, dumb bombs, and the GAU. It carries the ALQ-131 pod, but that's only for self-defense (jamming). Also, the operational envelope for ALE50 is too high to be useful for the A-10, unless it's going to just be used as a bomb truck at medium altitude. Plus it only has two "buddies" so it's of limited use.

If you can get your hands on some of the literature regarding it's intended deployment in Europe if the GSFG rolled through Fulda, you'd be horrified at it. Both it and the Apache would have attrition rates that would never fly with today's voters.

And it's not that the threat isn't "serious enough to bother", but that it wouldn't be cost effective to increase the A-10s survivability. If the conflict gets too hot, the USAF simply won't deploy the A-10.