youre quite right. Insurance claims will rule after we clean up all the debris and restrt civilization. The USGS has been sorta working on "hydrating the surfaces" for small seismics and aftershocks. Im not sure whether a large volcanic neck can be slightly managed. We don't know how much excess magma energy resides down there in the Snake River hotpot.
California uses the "1000 smokes" area for geothermal but that's a field whose dimensions about which we have fairly good ideas .
"nature Bats Last" is still the way. I and when the Snake River ever takes off, there will be probably nothing we could do about it.
Relieveing seimic stresses on the order of those that we intitiate in fracking or in small fault zones is one thing. "Dousing" a supervolcano caldera is quite another.
Our abilities to predict are getting better so getting out of the way is still the best strategy.
Maybe sometime in the future. Who knows.