drillium used to impress me. That was before I started collecting pictures of broken Campagnolo cranks and before my Cinelli stem broke. Now I'm more protective of my teeth than that.
The other thing about modern drillium that bothers me is that cnc mills are affordable to people of limited means. But the drillium practitioners are still just drilling holes, which seems blasé.
I gave the OP the benefit of the doubt that this bike will be ridden, hopefully many miles and many years. If that assumption is not true, and this is a bike that will be ridden for show, drill away. Fatigue cracks grow slowly and do not reduce the strength of the item significantly until they are quite large, and then failure seems to be precipitous. But that is never the case, evaluation after the fact always shows that the majority of the fracture surface has been exposed to the elements for quite some time.