Objects on Path needs more options and in its current setup is very limited in its usefulness. This tool feels like it's still in beta. Whilst it's good at doing the one thing it's designed to do, it's missing a lot of useful capabilities.

If the objects are different sizes it doesn't space them evenly. Spacing currently is determined only by the center points of the objects rather than its bounding box. At least make it an option.

1. Objects on Path needs an ability to keep orientation of objects relative to page/path, similar to blends — http://illustrator.uservoice.com/forums/333657/suggestions/48984890
2. Allow to nudge or rotate individual elements along the path for Objects on Path — http://illustrator.uservoice.com/forums/333657/suggestions/48987899