It might have worked on drilling pig iron steel frames and cast parts which had huge tolerances built in but as mentioned upthread modern parts designed with FEA software are likely to be much closer to their limit of weight/strength for the structure they already have.
Introducing a bunch of random stress risers to modern parts which have probably been extensively worked and forged is a very bad idea.
It might have worked on drilling pig iron steel frames and cast parts which had huge tolerances built in but as mentioned upthread modern parts designed with FEA software are likely to be much closer to their limit of weight/strength for the structure they already have.
Introducing a bunch of random stress risers to modern parts which have probably been extensively worked and forged is a very bad idea.