I think this makes a ton of business sense.
1) Children are near the top disease spreaders
2) Less sick children means less sick employees
3) Less sick children means less employees spending time with their sick kids
4) Everyone wins!
Why not?
Also, it might make it more likely to happen next year if it makes good business sense this year.
4) Everyone wins!
Everyone except those kids who care less about having a flu sometimes than having a chance of their working parents spending time with them. =/