Is the Incisionless Otoplasty Procedure a Total Waste of Time?

Nearly incisionless Otoplasty is possible but may not be practical
Incision-less Otoplasty vs Conventional Methods:
My best advice is to pick the surgeon and not the technique. Few surgeons use the incision-less technique as it is a "blind" technique though this may be effective in the right hands. FYI, tiny incisions/holes are made in the skin in the "incisionless" technique  by varying size needles which occasionally requires some stitches.  Make sure you look for long term results. 

An Otoplasty procedure can be done with limited incisions (minimally invasive) behind the ears allowing for direct visualization and greater control in reshaping the ear cartilage until you have the right shape with the sutures used just to insure it remains in this shape during the healing period and also allowing for skin re-draping on the changed ear cartilage framework .

There is now a totally non-invasive technique to correct ear shape problems, but this has to be done in the first few weeks of life ideally.

The device is called the Earwell made by Becon Medical. The results are great, and will probably eventually prevent the need for surgery in adults.
 

Looking at your photo, ALL parts of your ear need to be addressed, so that you have a normal and balanced ear.  This is IMPOSSIBLE with the technique you are describing and your result will be sub-optimal. For the past ten years, I have used an incision behind the ear which is virtually invisible unless one lifts the ear back and looks very closely.