Odd as there are lots of articles saying the opposite.
Jul 2020 ... "More than 6 months into the pandemic, the virus’ potential to evolve in a nastier direction—or, if we’re lucky, become more benign—is unclear. In part that’s because it changes more slowly than most other viruses, giving virologists fewer mutations to study."
Determining whether genetic changes have increased transmission of COVID-19 is surprisingly hard
www.sciencemag.org
Feb 2021 ... "But SARS-CoV-2 and other coronaviruses are an exception to the rule. They mutate at least 4 times more slowly than influenza."
Occasionally, a mutation will give the virus a better chance of surviving and reproducing itself, and will result in a new population (known as a new lineage)
theconversation.com
Mar 2021 ... "Mutation rates are typically higher in RNA viruses than they are in DNA viruses.
Two RNA viruses with high mutation rates that you may have heard of are human immunodeficiency virus (HIV) and influenza (flu).
SARS-CoV-2 is also an RNA virus, but it generally mutates more slowly than other RNA viruses."
Several new strains of the coronavirus have been identified. These variants may spread faster and some may also impact immunity and vaccine effectiveness.
www.healthline.com
I am curious as to what the scientist's qualifications were when there are so many others, some of whom have studied mutation rates for decades saying the opposite.
Cheers
PS
The BBC had a scientist who fell in love with studying the coronavirus thirty years ago so that she focused on it. She was another April 2020 source saying she figured a vaccine was likely, in part due to how slowly SARS-CoV-2 mutates.