at level 8 symbiotic Bond is supped to add 22,4 effectiveness to pets Abilities when useing the Symbiosis AA Buff. It does not show this on the tooltip for Symbioses Spell or the Buff on the pets and parsing does not see to show any difference
I can confirm that this is an issue still, as my conjuror is not benefitting from her invested points in this either.
I would also be very interested to know if it works because I also noticed that the caster buff doesn't mention anything more and that there is no buff on the pet whether it is a conjuror or a necro