The ContentSearchHelper#getAttributeValue receives a content, a data path and a model item. But the model item could be computed via a content#getDefinition(dataPath) call

This could lead to less errors because the given model item could be wrong.

Example with Jira CMS-10299: The given model item was the title attribute definition staticly computed by ContentTypesHelper#getTitleAttributeDefinition, with a String type. But the content had a multilingual title (this was an error fixed in the CMS-10299). This led to an error in value transforming