I understand your scepticism, although todays modern, lightweight, and high-tech equipment makes the ascent a little bit more accessible to the well-equipped climber.
Notable speed climbs have been acocmplished by climbing teams well within 3 hours and solo climbs of the west face have been accomplsihed in under 4 hours.
Which has nothing whatever to do with the climbing situation in the 1950a, which is what the post was about. I'm well aware of the major improvements in both art and technology since then.