"Light" and "electricity" only travel at the same speed in a vacuum. Neither fibre nor copper wire could reasonably be considered a vacuum; they have different propagation speeds.
Also, we are far removed from "gen 1 of fibre", which was developed in 1970, i.e. 43 years ago. If anything, we're currently developing "fifth gen" fibre optics communications.
Everything else you said is spot on, though.