I'm not getting personal. Wha I am saying you are fundamantally missing my point.No need to get personal.
The artificer is a half caster and heavily uses an secondary infusion system.And bard and warlock and artificer.
Unless you think that an artificer is just another sorcerer or wizard. Is that the case?
The bard is a full casters using normal slots progression.
The warlock is a full caster using normal progression is alternate delivery systen.
5e slots and spells are made to create the same types of casters. So without exclusive spells (cleric, druid, bard, warlock), a psion is made obsolete by the wizard and becomes a bad class (sorcerer) that nobody will want.