I suspect that some airliner pilot training focuses more on get the plane on the ground in the touchdown zone, rather than get it to the touchdown zone, and then finesse a good landing.
I can assure you that, after many years of flying 'flying machines', I take as much pride in finessing the landings of an Airliner at 250+ tonnes and 145kts as I do in landing a small GA aircraft. For me it comes down to pride, professionalism and applying the correct technique for the class of aircraft flown.
FWIW I think the OP has a nice technique and is exactly what I use in GA aircraft. If an instructor told me to 'plonk' it on because 'that's what the airlines do' I would politely suggest that the PA28 isn't an airliner!
Happy flying.