How the fuck would this be more cost effective than them making their own chrome based browser and not be a demonstration of their over inflated operating costs and company valuation?
If you are paying for a service that is charging you enough to allow them to buy the most widly used browser from a company whose business model is to monopolize data, then maybe you're paying them a titbit more than what the service they're providing is worth.
The sheer market share that forces websites develop for chrome for maximum visibility, to force websites to allow their content to be scraped to be usable by the average user.