From the article: > By now, some 30 pieces have been found. Investigators assumed that after more than a year these would be covered in rich colonies of marine

From the article: > By now, some 30 pieces have been found. Investigators assumed that after more than a year these would be covered in rich colonies of marine organisms, whose makeup would shed light on the path the pieces had taken through the ocean. To their surprise, they found none of them hosted organisms more than a couple of months old. That gives some plausibility to "people moved debris to the ocean later", though also to "marine growth is weird sometimes". It doesn't support the statement "we have evidence confirming that MH370 crashed into the ocean at approximately the time it disappeared".