The phrase "as a worrying development" is correct and usable in written English.
It can be used to express concern about a situation or trend that is perceived negatively.
Example: "The recent increase in cyberattacks is viewed as a worrying development in the realm of digital security."
Alternatives: "as a concerning trend" or "as a troubling sign".
Some see that as positive, others as a worrying development.
Nonetheless, many editors and publishers see it as a worrying development.
The removal of all troops is seen as a worrying development as it would leave no barrier between the region's rebel groups and their government-backed opponents.
He sees it as a worrying development because bars and clubs aren't just places to party but crucial sites of community and belonging.
The campaign to take out Alwaki has been criticised by some as a worrying development where the US government can undertake to kill a US citizen without any form of trial.
Some will see this as a worrying development, noting that President Dwight Eisenhower used the term "military-industrial complex" in a speech in 1961 to give warning about the dangers of too cosy a relationship between government, military men and defence contractors.There are risks inherent in the cyber-industrial complex too.
People working in the prisons sector described the scheme as "disgusting" and a "worrying development".
It is a worrying development, as measles is often more severe in infants than in young children.
It's a worrying development for Udall supporters, as the senator's seat is one his party can ill afford to let slip away.
At a time when there is a drive to persuade more women to see games and the wider technology industry as an attractive career choice, that must be a worrying development.
There was also a disturbingly higher number of ulcerative STIs (syphilis and chancroid) as opposed to the inflammatory varieties (gonorrhea, chlamydia etc)., a worrying development with the high HIV prevalence rates in the country.
