No.
“Joshua runs two Bluesky accounts: @iceblock.app, the account of the ICEBlock app, and @joshua.stealingheather.com, Joshua's personal account. His personal account had DMs closed, but the ICEBlock account had DMs open, so [the author] sent him DMs there” about the upcoming blog post.
Joshua reacted to the blog post by blocking the author on the ICEBlock account.
When, “a few days later…[ICEBlock’s] server was still running Apache 2.4.5,” the author “decided to give [Joshua] a deadline to patch his server before [the author] publicly disclosed the vulnerability.” The author sent this deadline to Joshua’s “@joshua.stealingheather.com” account.
“An hour and a half” after the deadline was communicated, Joshua blocked the author from his personal account, too.