It seems to me that the delay imposed by a pause in use of the J&J vaccine to make sure healthcare providers are informed of and have appropriately updated diagnostic and treatment protocols is minor, its basically pulling forward by a few days the effects of the 80% week-over-week drop in J&J vaccine supply that was just in the news.
Leading to more people delaying their vaccination. Supply is currently at a level that all doses available are administered, but to the extent lost confidence results in longer delay for high risk patients, that has a cost. When supply exceeds demand, lost confidence will have a cost for those low risk people who delay, as well as the general population which loses out on wider immunity. Delaying the vaccine now certainly also has some cost of the same type, but it's bounded. Another case of a vaccine campaign ignoring warning signs and proceeding without pausing to consider appropriate response to issues as they arise will affect this campaign as well as future campaigns.
Suggesting that effects on the order of the ones seen here is a good reason to delay the vaccine should make people doubt the ability of our public health authorities to make reasonable tradeoffs.
[1] Michigan's Democratic Gov. Gretchen Whitmer declared her state a "COVID hotspot" as cases continue to rise and has asked the federal government to increase vaccines in response. https://abcnews.go.com/Politics/cdc-director-michigan-vaccin...
A credible decision would give your estimates of harm/benefit for delaying vaccinating people. You seem all too willing to ignore the people who will become sick or die because of delaying the vaccine. You are only looking at potential harm from not delaying the vaccine. Unfortunately, you have a lot of company.