...will not explain to us how a functioning compressor at the same RPM as it was before the failure is somehow not compressing now!!!
No need for you to know why, those of us whom have flown the engine types I specified previously, would know for sure, IF they had operated same....which clearly is not the case, with the above quoted 'compressing now!' diatribe.
No fuel, MP decreases, and depending on the throttle blade opening a little, or a lot.