Hi Marc,
No, no hidden sense

with "anticipated", "delayed" or "late", but simply another instructor's history. I see better what you and Will call late rotation. In the italian-style context, I just think that the type of rotation and MPA I make on the movie would be qualified of "anticipated". In fact, it is very useful for my instruction to see how instructors how are coming from another style than mine see this kind of stuff.
For the rest : yes, to me the "rotation-thrust" (good formula

) is a part of the casting stroke, but the follow-through which follows the thrust after stop (here, "stop"= sharp deceleration just after the MPA on the thrust) is not a part of the CS as it is a kind of drift where almost no force is applied.
Bye !
Malik