I’ve been using simlink for a few months and never had a single CTD until the latest sim update. So, for me at least, I don’t see any reason to suspect it as the cause.
I run Simlink for Charts alongside FSUIPC7 and SimConnect for PACX and Volanta respectively. Surprisngly, I haven’t seen a CTD as a direct result of Simlink but have had one due to FSUIPC7 (or PACX, I haven’t narrowed it down to either yet).