I understand John, you just don't see what the fuss is about, that's fine.

From my own point of view, as an illustrator who creates a great deal of line-work, there is a significant difference between spiro curves and standard bezier curves (I often bore people with conversations about lines LOL!). Of course not all illustrators would be interested in this either, but I'm guessing some designers would, especially type and logo designers.

I see, not only spiro, but the whole idea of live path effects as very exciting, then I would wouldn't I? As live effects these need not be 'bloatware', but merely more options 'under the hood', like all the other live effects.