[fzeroracer]

No it's not. You're being intentionally pedantic here and seem to be ignoring the actual meaning of those words.

If I helped someone do something bad, then I bear some responsibility for the outcome. That is the definition of responsibility. What is your definition, considering it seems to differ from the dictionary definition?

[read_if_gay_]

I’m honestly not being intentionally pedantic. To say someone helped with X is different from saying someone is responsible for X. The latter implies full responsibility, the former only partial responsibility.

That’s more than enough of a difference for this to matter. Especially if X is COVID-19. Traster is clearly strawmanning the tweets.