As I read some articles on these intercoolers, including articles such as: -
"The turbines are of a sound design but have an intercooler-recuperator that recovers heat from the exhaust and recycles it into the engine, making it more fuel-efficient and reducing the ship’s thermal signature. Unfortunately the intercooler unit has a major design flaw and causes the GTs to fail occasionally. When this happens, the electrical load on the diesel generators can become too great and they ‘trip out’, leaving the ship with no source of power or propulsion."
I do wonder why the intercoolers are not just removed from the system and replaced with a bit of trunking, at least in the interim, it must better to have electric power reliably, even if you have to refuel more often and your thermal signature is increased, or is that just too simple a solution.