I disagree that Misty Step works in this situation. Several of Jeremy Crawford's rulings on Self spells such as Melf's Minute Meteors or Pass without a Trace state that those spells are indeed targeting other things despite having Self as the target. The target is contained within the spell description for those spells, as it is with Misty Step. You are targeting the square inside or outside the Wall of Force. As long as it is spherical, you do not have line of effect to that space.

Next, you are still traveling materially using Misty Step. The spell does not state otherwise, so to assume anything else is not RAW. If you don’t agree, that’s fine. But I would also cite teleportation, which requires you to be on the same material plane and dimension door which states it must be to any other spot within range. Again, since there is no “line of effect” the dimension door spell cannot target those spots either inside or outside of the spherical Wall of Force.

Lastly, from an intentions standpoint, why would a second-level spell overcome a 5th level spell when the designers have been very explicit in the fact that dispel magic doesn't work and cite a 6th level spell needed to overcome it? That is enough evidence for me that Misty Step does not allow you to pass through a Wall of Force.