I believe question of Argon BiSS-C and SSI support may rise for other users too, so despite wiki clearly stating:
" Supported by hardware. Argon is supported as-is, no new features will be added to it. Custom firmware features are possible with the Argon open source firmware".
Would it be possible for Granite Devices offer support for the protocols as a paid service, with custom firmware and can broad approximation of the costs involved for this kind approach be given?