Not even close to true. Force outs NEVER become timing plays. The reason it would have been a timing play is because they tagged 2nd base first.
True. IMO at least. As is jazzlover's input w/ Dead Ball true as well but lets pretend no Dead Ball was involved here, for the sake of Clarity. When the runner from 3rd touches Home Plate the game is over. Rule states the runner going to 1st has to touch that base as well, to make it officially over which makes sense.
Imagine Bases Loaded Tie Game 1 out Bottom of 9th Bloop to mid infield 2nd Baseman gloves and, feeling he can get the Double Play better than throwing Home for the Force there, touches 2nd Base for a forceout then throws to 1st where the ball bounces in the dirt then off the 1st Baseman's glove into the air runner from 3rd touches Home Plate before 1st Baseman retrieves the ball but when he does runner going to 1st is jumping in the air (on the In-Play side of the 1st Base/Right Field Line) so he tags him out.
Does the run count and the game is over? I think so. Because the run scored before the Double Play was accomplished.
Toss out the Dead Ball and this scenario is exactly the same. The DBack's guys did not "screw up" as has been suggested. Per the rule when Home Plate was touched by that runner from 3rd and 1st Base was touched by the hitter...the game was over and there was no need for those guys to touch 2nd and 3rd, respectively.