Those are exactly the ideas counter to the lore. Getting in to Ikisith is not supposed to be easy. If you can't handle the heat, get out of the kitchen, sort of thing.
Lets break it down, w/o using anything past the wiki, so as to not spoil any of the other lore for anyone else:
Banker:
The banking system is a mystical-arcane system, if we were able to attach it to Ikisith, we could send messages, weapons, etc. across the continents, and probably alert the Kaezulians in the process, which is something we are trying to avoid as Seekers. I'd love to be 'the arsenal of democracy' for Ikisith, but that's not a thing yet. You will also notice that the only banking option in Ikisith is an artifact from the Old World, and not Ikisith in origin, meaning you had to bring the bank with you, fairly literally. Remember, the bankers and such have never had contact with Ikisith, only the adventurers go there at great risk and with Shaina's blessing.
Inn Vendor:
"Rations Distributor Gralak tells you, 'I would be glad to shake your hand. Haha! Yes, you certainly got us out of a spot - I had nearly driven myself mad trying to find something, anything we could use to eat. I kept going over the same numbers in my head, knowing we'd only be able to feed half the town at most for the day and then have nothing left for the next, knowing too that all my ventures and all the headman's suggestions had failed to turn up another supply"
These people can barely feed themselves, much less adventurers. Or have tools to sell.
Reagent Vendors:
When was the last time you saw a Gruplok spellcaster? I can think of trappers, historians, lamplighters, and poets, but any magical abilities they have come from their old histories or other artifacts. They have skills, but none of them seem to lean towards the arcane in that sense. If they could spare the manpower past getting their basic daily supplies to pick up a few shiny rocks to sell, I'm sure they would, but you can only find so much in the swamp.
Trade-skill Containers:
"Healer Kathrinka tells you, 'Alchemy? Well, of course, it is the healer's stock and trade. But.. as I have explained, there are no wonders I can work with my meager powers......My mentor spoke of a powerful healing mixture, made with common ingredients from these lands. This was ages ago, when the Gruplok could move freely about the continent. Still.. I have seen you come and go as you please, so you may be the ray of hope. I need only a pulsating co`dair bladder and a handful of glowing moss. And, though it pains me to ask-.. 'I need.. an ordinary potion of healing to use as a base. This should be a small task for a healer, but as you see... Thank you for this kindness and good luck.'"
So yeah, she doesn't heal with magic and is no master craftsman (going back to some previous points) But literally can't even make a healing potion with the tools on hand. And on the tailoring one, you need to complete an earlier quest that helps the Gruplok tailor make a loom, she didn't have one before.
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The Gruploks really don't have anything, if anything we need to help them more, so that maybe they could do these things later. I would love to see further quests there, and there's plenty of room for it, to maybe begin to rebuild the Gruplok society, but just adding those in there for convenience? I feel that's fairly counter-intuitive. I love the Gruplok city, there's lots to do there, if your still underwhelmed, I think you should take another look at all the things you can do there.
And before you bring up the Remnants vendor again:
"Gugruble tells you, 'When I was back in the Murk, all I wanted was to leave. I thought nothing could be worse. But I hate it here and I'm starving. I do know how to cook a thing or two, but considering we have nothing more edible than thse leather straps, it is all for naught."
He makes some food out there, which is why he can vendor some. But he left the rest of Gruplok society for a bit.
