In fact, Apple even says as a preface to that picture:
"Although the amount shown appears to be plenty of grease, this is the correct amount that has been tested and verified on the production line."
Again, Apple's thinking is probably that the excess grease will be *forced* out from between the mated surfaces because of the tolerances between components and surfaces, leaving an "appropriate" amount of grease between the surfaces. That is a questionable strategy at best. : lol2 :