Earlier quoted context omitted.
Don't underestimate Big Corp's resistance to using OpenAI's hosted solutions (even on Azure) for anything that's not marketing fluff.
You can say that about anything, though. BigCorps aren't exactly known for adopting useful tech on a reasonable timeline, let alone at all. I don't think anyone is under the impression that orgs who refuse to migrate off of Java 5 will be looking at OpenAI for anything.
Whatever that means you can argue it.
But ChatGPT is a front line technology and super accessible. Java 5 is super back end and very specialized.
The adoption you say won't happen: it will come from the middle -> up.