Some photographers get in focus images of birds in flight using manual focus, I actually know one of those guys in person.
How many did you miss? ;-)
Here are a few of mine:
The question really is if you can do the same focusing on an EVF?
I happen to feel that EVFs are great but I am not sure they are great for focusing, but manual focusing is not the forte of modern cameras anyway. OVFs are not optimised for manual focus and EVFs are not there. I also feel that peaking is overrated, at least what I have seen.