I think two things are in play with the low "AI Revenue" estimate.
First, I wouldn't put it past him to just be calling out AI revenue generated for the first half of the year.
Second, a lot of the "What about all the AI infrastructure outlays and Capex expenditures" aren't actual AI revenue. It's the "picks and shovels" category of infrastructure, hardware, and hyperscaler build outs. So most of that incestuous circle of spending will be counted as revenue on that front.
The AI companies themselves are in the first phases of the "Time to stop giving out the goodies for free/cheap" part of the game. I spoke with an org that's moving to only give Claude Code access to their senior developers because of how many junior developers are doing their entire job with it and the Claude token bills are getting insane, so they're looking at a subset of my company's technology to control/restrict what AI tools different people in the org can access.