Roots are good! Another clue that would have told you that it was not a spike is it's location. Phals never have 2 spikes from the exact same spot (I might be wrong, but have yet to see an example proving otherwise). Each leaf base will only have 1 spike. So normally your next spike will be coming from the leaf above it, on the other side.
__________________ Camille
Completely orchid obsessed and loving every minute of it....