It might.
If they see a bunch of misfires (via the scan tool), especially on a particular cylinder, ...and possibly a couple errant readings, it would prompt further investigation. Probably pulling off the valve covers and running the engine briefly to observe each of the cylinder's valve lift (make sure they're all lifting fully) is what it should be. The next step might be to do a leak-down or compression test. FWIW, a bunch of misfires on a cylinder could also (by coincidence) be a failed ignition coil or plug, bad connector) or even bad engine/body/battery grounds. I likely won't make the noise go away, but misfires can be caused by several things. So don't take misfires by themselves as end of the world.
If it turns out one 'rocker arm' is not 'lifting' very much it probably indicates a worn cam lobe or damaged lifter. Most likely the cam. In that case, you have a bigger issue and some 'thinking' to do. Probably the Ford dealer would be the most expensive place to have a new cam put in ...and whatever else it needed. You definitely should ask them to show you if the cam is worn. They might tell you the engine is toast and $12k for a new one. In that case, don't panic (lot of guys have heard that -- dealerships need $$ too!), thank them for their investigation, and get another assessment and price from a different shop that does engine work and get an estimate for repairs.
Not to get ahead of ourselves, but, a lot of owners who have had damaged cams, have been able to just replaced the cam and lifters and clean out some other parts ...and whatever other parts need it. Worst case they might need to remove the oil pan, or the engine...and tear it down to clean out metal shavings. Often the rotating assembly is fine, but you'd probably want to replace the oil pump or at least take it all apart and clean. And if it's on an engine stand and the bores look good, probably stick in new main & rod bearings if you had it that far apart. And of course, a new set of improved Mopar lifters. That gets pretty expensive, but on the flip side you have almost a new engine depending on what work was done.
But, that's all worst-case. Let's not get ahead of ourselves. Mine looked good, measured good, just has a tick/knock. Been doing it for yrs. The sun still comes up in the east every morning. I didn't find anything wrong with it in terms of bad cam. But the again, lot of guys have had worn cams too. One of these days I'm planning to replace the lifters on mine...
Let us know what they find