The suggestion or implication that an engineering modification would alleviate all airworthiness problems is disingenious in the extreme. But I accept that someone with little understanding of airworthiness matters may not fully appreciate that.
If one did appreciate that, yet still asked the question, their motive could only be to divert attention from the real issue and those responsible. That is, the premature Release of a grossly immature aircraft, despite advice from world leading experts that it was not airworthy. A Release that knowingly withheld vital safety information from aircrew. In my opinion, that is not only Gross Negligence, it is a criminal act of omission. Supporters of these people would be wise to review their position lest they be implicated.