Honestly this might be less of a problem these days. If the model is that you build a good dev API and everyone points their agent at the software they need, then you don’t need the huge corporate investment in a full ecosystem.

To be clear I don’t think we are fully ready for this to work. But directionally the trend looks significant.

That's unfortunately a rosy view of it. It might be easier to take source from one platform to another but that was never the issue; the issue is keeping it up to date with releases, testing it as often as other platforms, and handling user support tickets. The chicken and egg situation still applies here and companies aren't going to spend all the time and money on a new platform if users aren't asking for it.