And that is what it most likely is, just a simple coincidence. These mails would have been sent out regardless of your mail in my opinion.
More likely a response to Hyperion's announcement to raise it as a topic in the lawsuit imho:
"Following over 18 months of unproductive negotiations with Amiga Inc. through our management and attorneys, we welcome the opportunity to finally present our case in a court of law which was regrettably the only remaining avenue after Amiga Inc. repeatedly and consistently
stonewalled any attempt to resolve the outstanding issues (including the “Party Pack” and “I am Amiga Club” voucher schemes and the failure to acknowledge the intellectual property rights of third party developers) through mediation and binding arbitration."
