People screw up on landing for many reasons, not having a stabilised approach is probably the root cause of most. You can happily have a stabilised approach above the visual glide slope. Commercial practical standards in the US require ... a stabilised approach. The FARs allow for being above the visual glide slope, but not below.
Went out playing with a cute young instructor yesterday. When returning to land I got a bollocking from her for being too close to the runway on downwind, and for cutting power to idle when abeam the numbers.
I told her if she didn't like it she could land the plane herself, but she declined as she didn't have a tailwheel endorsement.
New breed!