That kinda defeats the purpose of the recorded broadcast lol
No it doesn't.
He made the broadcast around Lulusia.
Three things are worth noting
1)he doesn't know who used the weapon
2)He fears he might be killed and that's why he prepared the broadcast in advance and linked it with his death.
3)he knew someone will try to stop the broadcast if it goes alive.
So, do you think VP a genius scientist won't factor in the possibility of what if broadcasting snail was found?
Because the person who will try to stop it is the answer to all the questions.
So, he can outsmart them by having live feed which gets triggered once someone tries to stop the broadcasting snail.
An ultimate fuck you to WG