The implementation is unclear and the linked article doesn’t exist. What do you hope to achieve? The SEQ already supports 64 (I think) assignable triggers via DOUT pins.
So, MBSEQ supports 64 DOUT + 8 AOUT, while the linked device supports 16 DOUT + 16 AOUT, where is the problem?
Not intended as a critical posting, just trying to understand, what the goal is?
You can always chain up a few MIDIboxes (not necessarily all of them running MBSEQ) specialized/adapted for your needs, it just needs a bit of programming, but everything is really well documented and easy to do.