NFHS Fielder acting as if an Error occurred

[BSBAL18]

I am reading the NFHS case book, and 6.2.4 Situation E is "With R1 on second base, F1 wheels and fakes a throw to second on a pickkoff attempt. As R1 dives back into the base, F4 and F6 run into short center field and act like an overthrow occurred, R1 Seeing this, takes off for third base and gets thrown out by F1: RULING: This is legal and not considered unsportsmanlike conduct."


So my question is... If a fielder at a base fakes taking a throw (or fakes a tag) the rule is obstruction, but this "trickery" by the infield is allowed? Just trying to make sure i clearly understand situations that may occur... Thanks for any help