The whole tone of your post came across as dismissive which is in itself condescending. Apologies if you didn't mean it to be but it is how I read it.
My points were to give context - I don't think either party took it lightly but your suggestion it happened quickly or was decided in the 11th hour is erroneous - yes the writing of the maori version was the late addition but I doubt that there was no due consideration in the days, weeks, months prior by maori. Its just not how they roll, then or now. Or the colonial govt...this country was one of many british colonies, they knew exactly what to do, what outcome they wanted

Canada, usa, jamaica, india, etc etc say hello! Inexperienced? Nah, they had the template down pat for what was to come.
Not all those countries had treaties of course but those that did...surprise, surprise, they weren't worth the paper they were written on. And much blood was shed to build the british empire...
Here, they came across Maori, now that's another kettle of fish. Unqualified, inexperienced in negotiation? Spend some time in hui, wananga, wharekura etc and you learn otherwise.
My point being, either or both sides didn't just decide to do a treaty and within a couple of days sign off on it...the rest that happened is a whole other story.
Seymour's in a hurry to re-invent the treaty in different words because he knows exactly what he has to do to pave the way for rape and pillage (figuratively speaking) of this country and its resources. Maori and the treaty stand in his way