Note that their results are based on their test procedure. Their test procedure may not be relevant to your hearing lose, how you wear your hearing aids, and so on.
This is why I and others recommend you test the hearing aid in your own ears.
You really don’t have much to lose with the Jabra 30 hearing aids if you live close to a Costco. You have a full 180 days to try them.
Plus, you stated earler that you can’t afford $3,000 for a pair of hearing aids.