Psychic Disciplines bonus spell question

[dynilath]

With discipline of Tranquility, Psychic gets bonus spell as follow:

Bonus Spells: telempathic projection* (1st), silence (4th), mantle of calm (6th), mass daze (8th), serenity (10th), psychic surgery * (12th), mind blank (14th), euphoric tranquility (16th), time stop (18th).

Psychic gets daze (mass) as a bonus spell at 8th level, at which level she is also able to cast 4th-Level spells.
But i can also find that daze (mass) is a 3rd-Level Psychic Spell.

then I searched other disciplines, all of them get a 4th-Level Psychic spell( or a 4th-Level spell from other class) as a bonus spell at 8th level.

so I searched some bloodlines for Sorcerers (not all of them), to compare. They all get a 4th-Level bonus spell at 8th level.

is there anything wrong with bonus spell at 8th level with discipline of Tranquility?

[QuidEst]

Nope. They're getting it at the spell level other classes normally get it. +1 DC. If you really wanted Mass Daze early, you could grab it at 6th and switch it out when you hit 8th. Early and late access isn't that rare for bonus spells.

[Plausible Pseudonym]

There's three(?) different disciplines that get Ethereal Jaunt as their 7th level bonus spell. But it's a Psychic 6th level spell, so they all get it late and don't even get a DC or other benefit out of it. It is what it is, just roll with it. Most disciplines have 1-2 really awful spells on their bonus list, you have to hope it balances out with the discipline abilities.