Force play or time play?

[Rita C]

Saw the following caseplay in Referee Magazine:

PLAY: With two outs, R1 on first ad R2 on second, B7 hits an apparent double. R2 touches third and heads for home as R1 misses second and heads for third. Without physically assisting R1, the third-base coach sends R1 back toward second. R1 is tagged out before getting back to second base and just after R2 had crossed the plate. RULING: No runs score. Even though R2 touched the plate before R1'a out, R1 never legally advanced to second base, the base to which he was forced. Therefore, R1's out is a force out and since it was the third out, no run can score. All codes agree. (NFHS 9-1-1 Exception B; NCAA 5-6c Exception 2; pro 7.12)

It still requires an appeal if he's on the third base side to be a force, right? Is there anything in the MLBUM about this?

Rita