They havent ignored it, but brought in a heap of changes which have helped cloud the real cause. Some rushed and ill thought out. This might spawn a few more.
Contrary to what many home engineers think, it osnt an easy fix.
Some attitudes at the company sure havent helped.
CASA have worked with unverified raw data, even the source, RAA, think it is badly misrepresented. It applies to all aircraft even those in experimental catagory which is plain wrong.
Based upon comparisons to competitor brand, with no acceptable failire rate established. Some engines limited dont even have comparative engine offering.
There needs to be improvements but tis isnt the way to make it happen.