To me , terms like 'series' , 'parallel' , 'full' , and 'mild' as qualifiers .. and as a simplifier to describe a variety of different vehicle configurations ... are themselves counterproductive terms.
Especially when people try to then also apply those 4 terms in some type of hierarchy of A always better than B kind of thing ... full hybrid is not automatically better than or worse then mild hybrid ... series hybrid is not automatically better than or worse than parallel hybrid ... but, that's just me.
As they say ... 'the devil is in the details' ... and those 4 terms do not define the systems enough in order to determine which one may perform better or worse , under some also yet undefined conditions.
So I personally don't like using any of those.... but , that's just my own personal preference... to each their own.