I don’t think inability to hear the high notes in the example means that sound recover will be of no help. The example is just normal sound for purposes of showing a visual example.
You don’t get the benefit of sound recover unless you have sound recover active on your Phonak hearing aids. Then when you listen to the example (or any high frequency sounds) you should be able to determine if sound recover is helping.
I have no knowledge about whether sound recover may or may not help for your specific hearing loss. Do you have free trials in your area?