To combat against that risk of hitting the canopy, most modern fighter aircraft do a couple of neat things. First, there is a linear shape charge embedded in t

To combat against that risk of hitting the canopy, most modern fighter aircraft do a couple of neat things. First, there is a linear shape charge embedded in the canopy. This is detonated at the moment ejection is initiated. This charge completely shatters the material. So instead of having a whole canopy flying about, the canopy is retained and the pilot ejects through this shattered material. The charge is supposed to shatter this such that the pieces are very small. Ejection seats also have a couple of small posts at the top. The purpose of these is to assist in punching through the shattered cockpit. Ejection is still the last resort, and your friend accurately relates the risks. But work is being done to make the process a little less risky.