profile responds
In a commendable piece of customer service, a nice lady from Profile called me within 10 minutes of when I submitted a question through the company website.
Profile is aware of the problem and will ship redesigned armrests, with a different kind of pin, to Airstryke owners.
Assuming the arm rests show up in the mail. Profile is to be commended for its handling of this.
I'd encourage others who have experienced this problem to contact Profile.