I can't comment on conferences or personal conversations directly, but yes somewhat.
It seems clear that's not the case with every time a suggestion is made, or this topic rebirthed; that the same people are "content" or fine with what TG as is, and usually don't even admit there need improvement if not for argument. That's not encouraging to development when these people are familiar with Matt, it inherently encourages focus away, as to the important people, things seem fine.
At the end of the day Terragen is a product. It inherently calls for critique, criticism, review and opinion. And it sells on that basis, creates fame based on it, or notoriety. Currently, TG is shrouded in notoriety.
And again, I'm not sure why documentation falls on me, or anyone else. That just falls down to Product Liability (something terragen meets all three categories in from the state Planetside is registered; not gooood). It's an admittance that development was not adequately tracked to not have documentation. These things should be documented as they're added, from the development side. And easily translatable to product manual/documentation. Same for any product legally sold. It must have some sort of manual shipped with it, or on it's packaging.