I understand what you're saying. However, that is still a cluttered background.
One of the problems with all P&S sensors (for macro) is the greater depth-of-field.
That can be a good thing, if you're wanting lots of your subject in-focus, but (for artistic shots) having all that garbage in the background is distracting IMO, even if it's "rendered smoothly" ... clutter and garbage "rendered smoothly" is still clutter and garbage.
You have 2 things working against you with a P&S: 1) you have to get it closer to the subject, which automatically means you're going to have more background to contend with; and 2) the sensor on those beauties just records more depth-of-field by default. With these two elements combined, you're just never going to get an artistic shot with a P&S like you would if you used a DSLR. For this reason, unless I want a "record shot" (where I don't care about bokeh), I don't even bother using my G15 for macro.
I remember back when I was shooting the Canon G9 P&S. I took a killer shot of a Painted Lady butterfly ... the color/focus/lighting were excellent ... but since you could see everything behind it back to a hundred feet (lol) it just ruined the overall effect of the image. If that same exact shot would have been taken with my 180mm on a tripod, it would have been a wall-hanger, but because it was taken with my P&S hand-held, and because I have since gone on to a full 180mm macro lens and know a good macro shot from a bad one now, that G9 image was eventually relegated to the Recycle Bin.
I do agree with you that running around with a P&S is more fun than lugging around heavy equipment, but when I have a really nice opportunity, it makes me sick if all I have onhand is my P&S ... because I know I personally will never be satisfied with the results. But to each his own.
Jack