Tested this myself. Not a bug as it is indeed not a heal card. Ditto for reaction part of Boosted Heal, Absorbing Block, Holy Presence etc.
I think the point that was being made was that Inspiring Presence should count as a Heal card, rather than Talented Healer not working as intended. I'd suggest renaming the thread but I think that can only be done by moderators.
That depends on what the definition of a Heal card is. In my head it is "any card that has a Heal effect at the moment it is played". By this definition Inspiring Presence should be a Heal card, whereas things like Soothing Darkness and the other cards you listed above would not. I am perfectly happy to accept that my definition of a Heal card is not the correct definition, but it seemed to make sense and therefore I expected that Talented Healer would affect Inspiring Presence.