Not quite, the central argument of the article was that incoming CBDCs are being designed to have no interest payable on them. The author was arguing that holding physical cash has the same shortcomings.

"Such concerns about financial stability are not to be dismissed. They have caused almost all CBDC designers — and all commercial banks — to conclude that it should pay no interest, since doing so would tend to add to the attraction, and increase the liquidity pressures on banks under duress. This design choice has largely gone unnoticed by the public. This is strange because paying no interest on CBDCs has large and lasting implications for citizens, even though they may not realise it."