There is (IMO) still a lot of value in having a searchable Internet index. If AI summaries were the only option it would be very difficult to know whether something is influencing the AI.

The problem is, of course, that we've already lost that battle with Google and other search providers. We know they're influencing the results. There is no open Internet anymore, but at least we can check the different search indices against each other. Checking different AI summaries against each other seems a pretty fruitless endeavor.