I disagree with this vehemently. There are things outside of the passenger's control that may occur at the airport that would prevent a passenger from making their flight.

I was once delayed at the TSA for an hour because my bag was in a machine that broke - and that was after waiting 20 minutes in line. Incidentally I did not miss my flight (I had planned to take an hour long call from the lounge) but had I arrived at the airport 2 hours early and tried to drop off a bag without status (therefore having to wait 30 minutes..) there is a good chance I would have missed my flight.

What if, similarly, a passenger happens to be on a watchlist? True secondary (not just your basic SSSS secondary) can sometimes take upward of 1-2 hours.

At the very least, the rule should be waived if the passenger arrived at the airport at a reasonable time before their flight.

I don't know why people on this forum hate BE travelers so much. All BE fares are is what the old low fare used to be.. and now you have to pay extra to get the same thing you used to get before or pay less and get abused. And yet people on this forum seem to love the notion of people having a lower fare and getting abused because of it. It makes no sense to me. The schadenfreude is strong here (even though, incidentally, people here suffer through higher prices as well).