Anyhow, it is just a common sense.When there is just another probability to add, and you just need to call something simple as "loss of ball" (with a different information), it is simple as can be.You clearly have no idea what you are talking about.It may be simple probability for you but to add something like that to a program is differnet. You need to define events and the type of variables of scenarios and the whole GE need to be tested to make sure the whole system doesn't fall over. Its not a simple change...it requires a whole production line along with the necessary QAs to ensure it works properly.
Anyhow, it is just a common sense.When there is just another probability to add, and you just need to call something simple as "loss of ball" (with a different information), it is simple as can be.
Stop speculating on how easy programming changes are if you have no idea what is involved