Drainage holes in Subframe connectors

I recently had some subframe connectors welded into my 74 Dart sport, and I noticed that water tends to sit on the inside of the square tubing that connects the front and rear of the car. I plan to seal off any areas that water could get in.

However, would there be any issues if I drilled 2, 1/4" drainage holes in each one to help keep them dry and drain out any water that happens to get in?

I don't know if structurally it would make a difference.