I heard this news when I was in Taipei and it's big deal there!
I just saw ppl getting frozen 豬血糕 from a Taiwanese gorcery store on No. 3 (near superstore next to a furniture store) I guess you can make your own bbq 豬血糕 at home with the frozen ones.
The pig's blood cakes pass the stringent CFIA standard and legal to sell in Canada
so I think it is safer here than in HK or Taiwan.
The Scotch, Italian, Portuguese use a lot of pig's blood in charcutiere and sausages.
not to mention Vietnamese and Philipinos.