Generally I can sort of agree with the sentiment. Definitely when on flexible fares on the golden triangle I have "missed" flights because of maximising time at destination, but is the flight "missed" when you call to move your flight 30 mins later, enroute to the airport? Also, despite having lounge access I still find I want to minimise my time at airports and get there as late as practicable for the particular airport - not so much that I miss flights, but certainly so I am not wasting time hanging around yet another airport or lounge.
But also I think there's a bit of a US perspective where people tend to get to the airport very early. If you look at Australian airports, it's different, people can still get to the airport (35mins before) and check luggage in at a time on many US carriers, boarding would have already commenced. And in Australia with OLCI at quieter times of the day, without luggage, it's easy to arrive 20 mins before and still make the flight, something that just wouldn't be possible in the LOTFAP.
Even when travelling internationally (ex MEL or ex SIN), I know my airline cutoff times and I have a reasonable idea when traffic will be bad (or taxis will be difficult to get) I usually aim to get to airport 15-20 mins before luggage cutoff. Of course if on non-flexi fares or an LCC I had a bit more "fat" into the schedule, and try to arrive a little earlier in case there's an accident or something.