I suspect that's just people having their delusions of rampant future growth and expansion of twitter being crushed in the gears of mundane reality. These moves are perfectly fine for a normal company that intends to continue operating at about the same level as it is currently indefinitely. But people view every tech company through the lens of apple, google, amazon, etc. They expect growth, they expect new stuff, and so on.

The truth is that with modern technology you can build a company that has hundreds of millions of high-volume users and yet is not very expensive to operate. Companies, and their revenue, don't necessarily scale the way we're used to from the experience of industrial companies.