For my Fiat 500e, I had to order the key assembly from Fiat Chrysler, because they were the only ones who could cut the key blank. They requested the VIN, did a lookup of the profile, cut the key and shipped it off. I bought the key from a part wholesaler (cheaper than a dealer) had to provide proof of ownership (faxed registration) and Fiat Chrysler shipped the key directly to me. I then took the key to the dealership and paid $100 for the programming. What a ripoff, the guy only took 20 minutes. Anyhow, after taxes and shipping and such, it was a total of $270.
True that registration is not proof of ownership, but rather operation. Still they did not need the title.
As for the FFE, consider that the metal key is only used if you have a 12V battery problem. So cutting the key isn't the highest priority. The programming is. So if Forscan could do the key fob programming, then it could be fairly reasonable (cough, cough) to get another "Key".
A quick look on ebay finds for the FFE under $27:
https://www.ebay.com/itm/For-Ford-Focus ... SwfzJdymcO
https://www.ebay.com/itm/Smart-Remote-C ... SwhEtd7jcv
If you still want to cut a metal key, the one included with the above fobs might not work in your particular vehicle. I believe the 2012-2016 used a different type of blank than the 2017-2018.