This does not appear to be an array of the data created but array that defines the fields that have been created. In many ways it looks just like a set of fields for an ACF field group.
Could you access the information stored by the other plugin with ACF fields? Possibly. But how would depend on how the data is stored and not the field definition you posted. More than likely, yes, but it probably would not be easy.
Welcome to the Advanced Custom Fields community forum.
Browse through ideas, snippets of code, questions and answers between fellow ACF users