Show us the data
We should be reasonably confident that ‘the data’ exists, but less so in the way it was interpreted and applied in design and certification.
For those who wish to see the data; you are given it - then what. You make your own (non-expert) interpretation, judging safety in whichever way you choose.
The underlying issue is trust, restoring confidence in the regulator and manufacturer which certificated previous (subsequent) types.
Neither the FAA or Boeing have excelled with their attempts to restore confidence, particularly with the lack of information. This may be the greater task in returning the Max to (profitable) service than the technical problems - technicalities can be fixed, issues of trust confidence might only be restored slowly, and never to previous levels. Also technical problems relate to knowledgable people in the industry; with trust, sentiment, the general public, may not be so easy to convince.
What the industry requires are clear technical descriptions of what MCAS was supposed to do, why, and how. Then as appropriate, how the proposals will address the shortfall in operation; the why and how.
Operators need the technical descriptions, piloting and engineering, which were absent in the original Max documentation.