The warning message literally tells you why it does not work and what to do about it:
Warning messages:
1: In geom2trace.default(dots[[1L]][[7L]], dots[[2L]][[1L]], dots[[3L]][[1L]]) :
geom_() has yet to be implemented in plotly.
If you'd like to see this geom implemented,
Please open an issue with your example code at
https://github.com/ropensci/plotly/issues
...