What's wrong with Ron? At least it's not an adjective.
The unseemly part of the whole mess is the "gotcha" factor. Sequestration was telegraphed over a year ago, and effects on Airventure should have been worked out a long time ago. For this year the FAA should bite the bullet - and yes, they can do so, as the funds were committed (and in Federal Budget ways of thinking, already spent) already.
The rules of sequestration, even before Congress amended the FAA's constraints, allowed for the flexibility of travel expenditures for individual events even if it did constrain the whole pot.
For the future, though, there can be a middle ground. For example, the EAA could agree to provide local housing and transportation for the ATC personnel (leaving the FAA on the hook for per diem, salary, and transportation to Oshkosh). Is it unreasonable? Not for an event of the size of Airventure, IMHO.
OTOH, if I were running the political show I'd take the other tact - showing how government services are meaningful and worthy to the average Joe (and why across-the-board cuts aren't always the best answer).