you probably have seen too much of it and became numbed to its effects. . .
It happened to me, I recommended a show to a friend and he was like "dude this is fan service non-stop" and I was like "nah man, nah its cool, its pretty sci-fi and no fan service"
then I watched it with him, and his commentaries and yes. . .indeed it had too much fan service in the excessive sized boobs, the excessively tight suits etc, transformation scenes, all that stuff. . .bouncing boing boing
all that stuff, and I realized, i had been numbed to ecchi effects