Pols and regulators should butt-the-hell out of corporate mergers and other actions that disrupt the status-quo. See Democrat primary loser and hypocrite for supporting corporate shill Hillary Clinton Bernie Sanders for example. Trump also said he opposes it.
Employees of the merging firms must figure out how best to serve their customers and shareholders.
Remember folks, firms have to work within the current regulatory and legal framework. If gov’t wants to do something useful it should deregulate telecom and scrap net neutrality. Those constrictions led the decision-makers in this deal to view a merger as a way to drive growth.
The interventionist fear is based on outdated definition of monopoly. Standard Oil’s so-called “monopoly” lowered kerosene prices “from 58 to 26 cents from 1865 to 1870. Competitors disliked the company’s business practices, but consumers liked the lower prices.” https://en.wikipedia.org/wiki/Standard_Oil.
Yet, some politicians and activists want to stop this merger because they are simply afraid of change.
You can let firms experiment and innovate to figure out how to serve customers and grow, or you can let politicians protect the status quo and continue with 1% GDP.