The article you linked to doesn't say that, even a little bit.

"We found that viral load reached its peak in the throat and nose (which is thought to be the main source of transmission) very early in the disease, particularly from the first day of symptoms to day five of symptoms – even in people with mild symptoms."

"Contact tracing and modelling studies also show that transmission is highest in the first five days of experiencing symptoms"

"According to a recent study, the period of highest infectiousness is within about five days of symptoms starting. A contact tracing study from Taiwan and the UK found that most contacts got infected if they were exposed to the infected person within five days of their symptom onset."

In fact, when you said "probably does transmit a bit less", you basically copied from the statement in the article you linked to without actually checking it. If you follow the references you get here:

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3371799/

"These observations suggest that the extent of exposure to SARS in persons who remained asymptomatic may have been lower, possibly resulting in a lower viral load of SARS-CoV, associated with less severe symptoms"

Once again, symptoms, even a lower amount mattering. More importantly , following YOUR links, shows that there is no actual data showing transmission from people who display no symptoms (which, despite your clinical definitions, is how people use the word)