Extended warranties are not warranties in any sense of reality. They are insurance policies, and as such, the company will do absolutely everything in its power to not pay a claim. If there is any vaguely legal way they can get out of it, they will. They also know they have you over a barrel. What are you going to do? Hire a lawyer while your car sits in a shop for a year?
That insurance is also not offered by Ford. Ford contracts with an independent underwriter (or several). Furthermore, you see those plaques and awards on the wall of your Ford Service department? They are not awarded because they are a great shop, those are recognitions from Ford that go to service departments with the highest number of conversions. That is to say, they go to the service departments that were the most successful in convincing customers that a genuine warranty repair is not under warranty and convert the repair to customer-pay.
I worked in sales and service for Ford, GM, Volvo, and Honda. All of them are the same. Warranty conversions to customer-pay is an actual metric we discussed in every weekly sales meeting.
I look at those "warranties" and I think.... the $2400 buy-in could buy me three engines or three transmissions with low miles that I can swap in.
Just read the fine print with a crystal clear mind before you dive in. Aftermarket insurance companies that cover auto repairs are (for the most part) egregiously awful, very shrewd, and complete ripoffs. Working in repair I wish I had a nickel for every customer who came in and proudly handed me their "extended warranty" with a smile. Then they find out that their $3200 transmission rebuild would only cost them $2700 they would lose their E36 M3. They didn't read the fine print to see that the package they chose had fine print that says transmissions are covered* *up to $1000 with a $500 deductible. These companies would talk to me (the service writer) and ask me to go over the car with a fine-toothed comb to look for absolutely anything that could be considered neglect so they could deny the claim. A weeping gasket, coolant that was neglected as if that could cause a broken sprag or a failed solenoid. I even had one ask me if the car had "uneven tire wear" which would indicate "forceful driving."
Some people get them and love them, but they are insurance, not a warranty, and the entire purpose of selling you a policy is to make money. On the average, they're collecting more money than they give out in claims, so that alone is a losing proposition. Many people say "yes, but I have the money now and I might not when I need a major repair." That might hold water if you were certain that they would pay out and actually save you money.
Those are also repair numbers based on the Ford dealership doing the work, which is the absolute most expensive place to have the work done. You can have an independent shop completely rebuild a transmission with R&R labor for $2500. You can buy a good, running junkyard engine for $600 and have a shop drop it in for $750. I could probably do an engine swap on a Ferrari for less than $6000.
I say hard no, complete ignore, don't do it. I wouldn't even do it if someone else paid for it just on principle.