well, they can change the concept of antitrust, in theory - and, maybe it is indeed a little out of date. i think that is the simple takeaway from the discussion: if you're going to be talking about antitrust laws in 2019 in any context at all, the entire theory needs to be updated.
but, again: i don't think this is a step forwards.
there was an article at business insider trying to argue the approach is left-wing because it's focus on local job creation (however disingenuously, however abstractly) contrasts with the chicago school focus on price. this is a weird characterization of the difference between 20th century liberalism and neo-liberalism in the first place, but that's like arguing that churchill was on the left because he fought against hitler. it really restricts the spectrum - but that is itself pretty normal, at this point.
here's an idea - maybe the internet should be approached as a tool to use to better society, rather than as a way to make a profit. maybe we should be basing policy on the use value of these sites, rather than scheming up ways they can make the most money for the most people. so, maybe the government policy around google search should actually be to maximize it's function and use as a search engine. i know: this is radical.
warren has been clear enough that she wants to support free-market capitalism, which means looking at the internet through the lens of entrepreneurialism, rather than through the lens of use and function. a service is about an accumulation process, rather than the service itself. this is happening when americans are rejecting this kind of logic in other sectors. so, it's up to the american people to decide if they agree with her or if they want to align their views on the internet with their evolving views on healthcare and education.
http://time.com/5548262/elizabeth-warren-antitrust-amazon-facebook-google/