So apparently this map was sent to die over "ambiguous" sliders.
Let's have a look at them, logically.
This post is
assuming sliderstyle is default, not crescent style. The pictures in the post are using crescent style for more detail.
To start, I'm going to bring up a pattern you probably have seen before.
It's the slider loop.
Slider loops in the past have caused concern due to the natural slider overlapping they have. The fear was that they could be designed to be misleading, like the picture below.
Many people loved loops, however, and it was visually clear when they were being used. Because of this, an exception was made and loops stayed a rankable pattern. Fake loops were deemed unrankable as they were misleading, not misleading because of their overlap, but misleading because they looked like real loops, something they were not.
Over time loops became very easy to spot, even when the loops were very small, so small that there was no hole in the center. They were still readable though as the bulge of slider implied a loop, as it always had.
This effect is present even when said bulge is close to the startpoint.
Closer and closer, it was still obvious that the slider was going to make a loop.
The circular bulge implies the loop, and nothing else.
That is where Bonfire's slider comes from.
Normally, ambiguity causes unreadability, but this is a slider loop. A slider loop implies a straightforward path as has been developed by so many slider loops before it.