Nope, his commentary (if you can call it that -- hysteria is a better word for it) was already shut down by other epidemiologists and virologists on Twitter for missing essential context and being needlessly dramatic.
His follower count has benefited significantly from his tweet chain however.
A useful tweet that has a much more accurate and level headed take on the numbers:
Also, the study that he was citing had already updated its R0 score to 2.5 based on newer data.
This is an evolving epidemiological picture, and we are still at the early stages of knowing the extent and lethality of this virus.
People like Dr Feigl-Ding who know that they have some level of public exposure and may generate public "trust" from their positions, should know how important it is to report on things calmly and accurately without unnecessary flourish that might generate panic --- which in turn has the potential to generate harm.