Why Play A Ghoran?

[Psyren]

Even without those immunities, the type still lets you be immune to things that target humanoids (e.g. Hold Person/Charm Person), or that target outsiders, constructs etc.

The seed ability is a lot stronger than you're giving it credit for. You can trade in a level and a few days to get rid of any debilitating condition imagineable - insane, cursed/geased, ability drained, permanently blinded/deafened/crippled/amputated, diseased/poisoned, drug addicted, tainted, dying etc. There is no time limit on this ability either, you hand the seed to a party member and they can bring you back at any point in the future. As written it works after you're dead too. It's more or less a self-only resurrection as an SLA with no material components that other people can cast on you, pretty good for a racial. Did I mention the level you traded in can then be restored?

As for needing to eat - yes, strictly speaking they do, but Goodberry as a 1/day SLA means they actually don't - nor does any party of up to 7 members traveling with them.