I think you have absolutely no idea what you are talking about… Metal Gear Solid 5 is developed on the Fox Engine, It’s the same engine P.T was developed with. They don’t have just a Directional and Skylight, they also have a very good GI solution basically they are also using light probes.
Left side, just directional and sky light. Right side, generated cube map for GI and light bouncing / indirect light.
The same goes for the Witcher 3 and all the other games, all of them are using some kind of GI and indirect lighting, no matter if probes or fully dynamic GI. A game developed only with the power of a directional and sky light, will have no GI, will have no indirect lighting / bouncing… as a result it wont look good.
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The left one has no skylight. The right one can be achieved with directional + skylight only. Ark did great lighting with scene captures. Your argument is flawed and comes down to lack of skill really.
But even if that isn’t the case, most dynamic GI solutions are not production ready to begin with, especially when you are developing multi platform. They’re just fancy toys at the moment.