I think it depends on the industry. In a specialized niche (B2B), sure.
In something like new auto sales, all of the information is available online and is usually more comprehensive and accurate than that offered by a car salesman. YouTube probably sells more cars than car salesmen these days (in terms of locating a product that meets your needs and convincing you to buy it)
I don't think anyone is suggesting that salesmen be forbidden, only that it should also be allowable to sell directly. Tesla, for example, has showrooms where people can learn about vehicles and try them out. But they don't order via a salesman whose comp depends directly on how many upsells are made.
In something like new auto sales, all of the information is available online and is usually more comprehensive and accurate than that offered by a car salesman. YouTube probably sells more cars than car salesmen these days (in terms of locating a product that meets your needs and convincing you to buy it)