Levistus's_Leviathan
5e Freelancer
Complexity=/=Page Count.It was 28 pages. 2 pages of intro, 2 of general class mechanics, 6 pages of subclass explanation, 16 pages of "spells" and 2 pages of talents.
Compare that to Wizard with 1 page of intro, 2 pages of general class mechanics, 5 pages of subclass explanation and 30+ pages of spells.
Same number of pages on general mechanics. Wizards have 1 less page of subclass explanation. Wizards have at least double the number of spell pages for players to learn. Wizards have no talents pages.
The complexity is pretty even, unless you count powers/spells in that, in which case the Wizard dwarfs the Psion in complexity.
The fact that the wizard has more pages explaining how to cast spells and what the spells are don't mean that a psion can't be significantly more simple to understand. I would additionally have less pages, here's what it'd look like:
1-2 pages of intro. 3-4 pages of general class mechanics. 15ish pages of subclass information. 1-2 pages of talents.
Overall it would be between 20 pages to 23 pages. Significantly less to read, with the powers being built into the subclasses, except the talents.