Not, is not so normal. We talk of putting a delicate embrio for several hours in a bottle of hydrochloric acid or vinegar (PH: 1-3), and expecting that the animal will survive intact and without any inner damage in organs or skeleton. Even a minor damage would disqualify it for competing and survive in nature; and we are assuming that hatching means survival, correct grow and even a guarantee of living enough years to be able to reproduce. Is a big leap.

This is not what happens normally and the original experiment should have addressed it.

But the idea is pretty convenient so we can now start blaming the ducks and talking about stop spending money in "unavoidable" processes when in the 99% of the cases the real culprit will be human

Is like seeing lots of money vanished for a bank with the door crashed and blame termites for it.