Well, we don't know what can be achieved without all the developers investing time into it.Yes otherwise it was kinda stupid from MS, Sony, AMD, NV and even mobile to start implementing it. I can see for consoles its rather limited and compromises have to be made there if used, its atleast a start.
With RTX we see it was mainly a bolt on feature. But with consoles having this as native, we can see the developers really investing resources on finding ways to make this run considerably faster and better. Everyone is going to benefit from the base consoles being so high in feature set, even if RT performance of these systems leaves more to be desired.