As i understand the situation, the FBI only wanted Apple to create a operating system that lives in the devices ram that removes the wipe after 10 tries. This

As i understand the situation, the FBI only wanted Apple to create a operating system that lives in the devices ram that removes the wipe after 10 tries. This would not comprimise Apple's encryption since the operating system would still contain Apple's private key (and the FBI added one time use provisions, also that this could happen in an Apple Facility). Hence the question is, Does Apple have to make a different OS (so that the FBI could brute force) to see what is contained on the particular device? I think they will be forced to, and i don't know that i have a problem with it.