There are some serious medical issues involved here. Ejecting might save your life but it causes severe spinal compression. A life of back pain is to be expected and the pilot would not be expected to ever be fit for fast jet duties.
Regaining fitness as a commercial pilot is possible but by no means certain and would take years rather than months. In the circumstances it is reasonable to assume that the pilot is medically unfit and unlikely to be employable for the foreseeable future.
There are, of course, questions which need to be asked about insurances and any employment contract provisions for medical retirement.