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.

Scarless otoplasty can be a very effective operation for patients who have relatively minor excess projection of the upper third of the ears. It involves scoring the cartilage in front of the ears to reduce the cartilage 'memory' which allows it to fold backwards easier.  The cartilage is then held in place with sutures that are buried under the skin and are usually permanent.

There are two reasons why you may have had trouble finding before and after photographs on the web.  Most candidates for otoplasty need more of a correction that what can be accomplished with just a suture otoplasty and the results tend to be more subtle which may not show up as well in photographs.

The "incisionless Otoplasty" is not entirely incisionless. It uses a very small incision to allow access of a rasp to score the cartilage and allow it to bend. From your posterior picture it is impossible to tell if you are a candidate or not. Even if you are not, standard Otoplasty can be done as an outpatient and you can return to most normal activities in a day or so. See a Plastic Surgeon with experience in Otoplasty..