This is a flippant comment and I don’t think that it adds anything to the discussion. I’ve noticed more and more of these types of responses on the forum lately.
The point of an engine is to take care of these types of technical issues so that we can make games, not tech. Therefore, I think that the OP has a valid point, though his frustration is clearly showing. While the current lighting system is suitable and excellent for many styles of games, it is not suitable for many new types of games that are emerging, such as those with very large dynamic worlds or even procedurally generated worlds. Deathrey is certainly right, the number of projects that would benefit from it is overstated.
The fact is, Unity has a semi-dynamic solution for this with Enlighten and Crytek has conquered this years ago. VXGI is pretty good, but those other implementations are better.
It might not be in Epic’s interest to pursue dynamic GI given the types of projects people develop with Unreal, but there is clearly a strong desire by many for it. I personally think that there is a large number of projects that are being held back without it.