What is unwise?
If the runway has been inspected I see no other problems.
Say this runway is 9800ft with the last 300ft blocked. That still leaves 9500ft. Plenty of space to stop any aircraft. So please Denti, why is this unwise? What is the risk? To me it seems like a well considered command decision as far as I can tell.
A couple of days ago I landed on a runway of 6000ft with an nice cliff at the end. Was that irresponsible? What about the land and hold short (of crossing runway) clearances in the US. Are those irresponsible/unwise too?