Sure.
Just like anyone who dies with the virus is counted as having died from the virus.
Flubros are just looking for justification for their claim that shutting down the economy will cause more deaths than the flu, and counting this as one will bolster that claim, they think.
There had to be issues before because the shutdown itself would not cause this.
If you count people who had issues before as Covid-19 deaths you would also have to count people who had issues before as shut down deaths.