Usually, there is a confirmation spreadsheet where teams can check to see if they are signed up. That is always stressful - did the local director get an email from my team's coach about playing? It would really bite to find that information out NOW - somehow bet that you'd struggle to get added in.
Consider that leadership should already know the number of teams playing in each bracket (upper and lower, if I understand it correctly this year) it is a matter of plugging in names once they are seeded. Just how hard is that, anyway?
Waiting for an email or text that says, "surprise! your son's team plays Monday!"