'overall game management'. I can't think of a more polite way to say that, quite frankly, that's the biggest load of codswallop I've ever heard. You're going to award an IFK for a penal foul because you're worried somebody will get upset with you? What on earth do you do when somebody goes down in the box and both teams are screaming at you??? Abandon the match???? If that's your attitude I'd hate to imagine what you would do if a game got difficult!!!
The hilarious irony with this approach is that you're just as likely to upset people by being too afraid to do the job that you're being paid to do than you are by actually doing the right thing. So just do the right thing and stop taking money under false pretenses!!!
So you can quote the law, but do you understand it? As you say, it's for 'commits any other offence not previous mentioned in Law 12'. Given that you can read the LOTG, I presume you noticed where it says that a direct free kick is awarded if a player 'pushes an opponent'? So, where do you get this 'not previously mentioned' business from?
And if you're seriously going to argue that you're not stopping play for the penal foul but for the USB attached the penal foul, then please, go and enrol in the next introductory course you can find. By your logic, penalty kicks simply don't exist. Somebody tell FIFA that they've left some extra unnecessary pages in the book!
I thought I had heard it all when somebody on here tried arguing it's perfectly fine to award a Goal Kick while the ball is clearly in play, but this takes the cake!!!!
Have a bit of a think about what your job on the field actually is, mate.