I'm not sure I understand your point. In the OP, in my opinion, there was NOT OBS, because F2 had possession of the ball, and none was called. The runner dove over the fielder, which is not allowed by FED rule. My question for you is: Why do you think FED has diving over a fielder as illegal, and an out ? You don't believe that rule is in place for the safety of the participants ?
My point was to address the suggestion made (and assumed) in posts 8 and 9 that in the OP we have a "conflict" between an OBS award and a diving infraction.
Forget the OP. Suppose a case of genuine OBS and genuine diving over the obstructing fielder. There is no conflict, because a base award is not a guarantee to acquire the awarded base, but rather the right to advance legally without liability to be put out by the defense. If a runner chooses NOT to advance legally (diving, MC, missing a base, etc.), he may be called out by the umpire. No conflict.
Of course, the diving rule is a safety rule, but that's quite irrelevant to my point. I was illuminating the (often misunderstood) meaning of a base award.