You are correct on the second one

So your answer is “Yes”?

As the wikipedia article cites peer reviewed study (see study tab) that even though these kind of headlines make up only ~ 2 % of all hesdlines 44 % of them answer “yes”, and only 22 % answer “no” with the rest being indecisive.

True, but that is what the whistleblower warned. He said the planes would fail randomly after around 10-12 years approximately.

He was a quaility check engineer at the assembly lines (or sth similar) where the workers were forced to assemble too quickly which caused a lot of small foreign bodies (residue) to enter components with wiring that would degrade due to this.

He also said that would degrade those components much faster than expected and told to the airplane operators causing less checks and earlier failure (than was told by Boeing)