Why would it need to be addressed? There's a few skills of this nature, e.g. many Mo/E use energy glyph but don't (can't) put points into Energy Storage.
If spells are linked to attribute trees, then they benefit from additional attribute points.
If they are avaialble but receive no attribute benefit, then why are they linked?
For example, Frenzy, the warrior skill, is available to primary and secondary warriors. It is unlinked to any attribute tree, and receives no attribute benefits.
I fail to see the difference between Frenzy and Balthazar's Spirit, besides the fact that Blathazar's is misrepresented as a protection prayer linked spell, Unless there is a benefit which has not yet been discovered.
MWAHAHAHAHAHA I actually used it on purpose to see if anyone would pick it up lol, and yes it is intended I suppose, if anyone found some combo that was so leet it needed nerfing :/ but it probably doesn't matter if it is linked or not as it would not change the dynamic of the skill at all. Bottom line: It doesn't matter where the skill is placed since it will always do the same thing, so why the big fuss over linked or not? lol