Perhaps this was true in the 90s-00s, but I doubt it.
The state of VR is greatly ahead of where it was 20 years ago but still just a novelty in the context of porn. The current advances in ML, AI and whatever blockchain ends up being used for have little to nothing to do with porn itself (recommendation algorithms and chatbot/NLP tech have application but aren't drivers). Robotics is being advanced by far more productive applications like manufacturing and putting unskilled humans out of work.
We may eventually get to the point of autonomous sexbots that leverage all of these technologies, but it's surveillance tech and the monetization of voyeurism (for advertising) that's driving today's advances, not porn itself.