Neither MD or VA have required snakeheads to be killed for many years....However both still encourage and recommend all snakeheads caught to be killed.
https://dnr.maryland.gov/fisheries/Pages/snakehead.aspx
"What can you do? If you catch a northern snakehead, harvest it."
"The northern snakehead has been described as a voracious predator of fishes, freshwater crustaceans, and amphibians. Its native range (24-35°N) and temperature tolerance (0-30°C or 32-85°F) indicates that, if introduced, northern snakehead populations could become established throughout most of the contiguous United States and possibly adjoining Canadian provinces. Because of their feeding style, they could outcompete popular sport fish such as largemouth bass. Biologists are also concerned that they could introduce parasites and diseases that could harm native species."
https://www.dgif.virginia.gov/fishing/snakehead/
"the Department asks that all snakeheads be killed if possible."
"Ruffin’s Mill Pond has been joined recently by Hunting Run Reservoir (Spotsylvania County), Pelham Reservoir (Culpeper County), Abel Reservoir (Stafford County), Burke Lake (Fairfax County), and Occoquan Reservoir (Fairfax/Prince William line) as all waters receiving illegal stockings of northern snakeheads. An individual was arrested and prosecuted for illegally stocking snakeheads in Lake Brittle (Fauquier County) in 2015. A bill was passed during the 2017 Virginia General Assemble providing for increased penalties for persons illegally moving (stocking) snakeheads. Anglers are encouraged to visit these lakes and harvest all snakeheads caught. They are excellent table fare. Snakeheads were found to be self-sustaining in Lake Anna (York drainage) in 2017. Thus far, none have been found downstream of North Anna Dam. However, as of May 2018; they were reported from multiple reservoirs in the James River watershed – undoubtedly a result of callous, illegal stocking from short-sighted individuals."
It's pretty clear that neither MD or VA view them as "no big deal" or in a positive light at all. I wish they would do more to try to catch the people moving them around....