"Preliminary tests with in vivo, in vitro and acellular methods for particles generated by *a limited number of filaments* showed adverse responses." (my emphasis)
So... no mention of the different types of filaments that can be used (PET / PLA / ABS / etc) and whether this has any effect of the types or amounts of particulate, and then there's this "limited number of filaments" line that (to me) makes it seem like someone cherry-picked the results to prompt further and bigger spending.
Biting the hand that feeds IT
