Perhaps, but without any explanation...
This 'no ASI' stuff is just trick flying really - far, far more important is the insistence on flying the POH approach speed. Which isn't 'Vref', or threshold speed - it is the correct speed for the approach!
Back when I was a Flying Club CFI, we discovered that some nonsense had been creeping in to the PA28 checklist adding various non-standard increments to the approach speed. Some people were flying at 80KIAS with 3PoB and wondering why they were having problems landing. The Warrior will float for ages if too fast in the flare, as it decelerates from the trimmed approach speed, increasing back pressure will be needed - which pilots may not be able to achieve with any degree of precision, leading to the flare, balloon float and thump 1000 ft down the RW style of arrival... Worse would be an attempt to force the aeroplane onto the RW, probably leading to loss of the nosewheel.
One of our more experienced FIs dug through the POH and revised the SOP speeds. Pilots were firmly re-briefed and landings improved greatly.
Fly at the POH approach speed, idle and flare and it will land very nicely where you intended. Adopt any other technique and it won't!