I'd really want to recommend that this is changed to reflect that the CHA score determines the number of bonus spell points that a FVS gets, possibly also with an explanation how it's calculated. It's quite a small amount compared to the total number of spellpoints a FVS gets at lvl 20.
As the FVS can be a bit complicated to build, many players who knows how to build them, often just put 10 or 12 points in CHA so that they have enough to cast level 9 spells and possibly can still have enough with a cast Eagles if disjuncted.