Let's understand these focus aids properly:
- Focus peaking was invented for video work as it gives a telltale of the focus zone at working aperture, not the best plane of focus.
- Magnification does the same thing that a magnifying class does on a groundglass screen in an LF camera: it gives you a magnified view of a detail of the FoV.
BOTH of these focusing aids require that your eyesight and the optical adjustments necessary allow you to see the EVF clearly have been done, and allow you to MAKE A JUDGEMENT about what you consider to be the "best focus setting." They don't define what that "best focus setting" is in and of themselves.
By contrast, a coupled rangefinder, when properly adjusted, requires that you determine when some image elements' doubled image in the viewfinder is aligned satisfactorily. When properly calibrated to the lens, this fully defines the "best focus setting" for that item in the scene. You STILL have to evaluate what item in the viewfinder is the 
correct plane of focus for the whole scene.
So the focus aids for an EVF work in a completely different way from the focusing of a coupled rangefinder: they let you find a plane of focus as you look, where a coupled rangefinder requires you determine what you want as the focus plane and then sets the lens to that point. They're simply different tools/different approaches to the problem of focusing a camera lens. Which works best for your picture taking is completely up to you. The M typ 240 up to the M11 series cameras allow you to use either focusing workflow at your convenience, the M EV1 only permits one focusing workflow. (Aside, of course, from the focusing workflow of setting a distance by scale on the lens independent of the viewfinder aids...)
BTW: If your rangefinder and EVF on the same camera (or your optical reflex finder and EVF, for those with SLRs that offer a Live View option) do not agree, the most typical reason is that the rangefinder or reflex finder is out of calibration to the EVF and sensor plane, OR that you're not seeing the optical RF or SLR focusing tools with satisfactory resolution (or are being sloppy about using them). I have seen very few instances of calibration failure with any of my SLR or RF cameras, but I have seen many instances of my "being sloppy" about using the focusing system over the years ... 
😉
G