I truly do not get the no drill sentiment... if it were a rare frame done 100% period correct, then I get it, but a frame that is going to be used and with modern components?

The drilling is one hole only, the back of the fork

The "drilling" could be done with a rat tail file.....the shavings weight when using a drill would be measured in milligrams,

This is not like cutting off a derailler hanger or cable guides