That test shows how robust the implants really are.
I am very surprised that 2 implants at the same would fail.
What tests have you done to confirm?
I think the “big deal” is more the risk of bio-fouling.
If tools were used, and they have damaged the surface of the bio-polymer, this may provide an area for this to occur.
Do you have any sign of infection?
FYI
if you are not familiar with biofouling use the forum search function, and you will find a few explanations, such as this one