I think... maybe the design of the survey skill doesn't mesh with the intended design of the survey system. You talked in your blog post about not wanting the system to encourage players ever having to come back to re-survey a planet, but the current system with having tiered planets locked behind the 3 levels of the survey skill does just that; you go to a planet, out on the rim no less expending fuel and supplies in huge quantities to get there, just to find that even if you came fully equipped & crewed out, you can't survey this planet. And thus while you may not have to re-survey a planet after you've scanned it, you do have to resurvey systems.
Which has actually caused me to never get surveying after my first play of .8. I get it's a good source of income, but the fact that I would need to sink 6 points into surveying (and industry) in order to be even capable of fully surveying a system means I never even get started leveling up surveying cause I've got 2 things I'd rather do with 6 points than that 1. And then there's the problem that even if I do level up to get full survey capability, the current system (with accidents only happening sometimes, and only taking a little machinery (and also crew)) encourages me to try to purchase & bring along as little machinery as I thing I can get away with, since derelicts & salvaging means I'm probably gonna wind up maxed out on cargo capacity (darn scrap metal, if level 2 of salvaging enabled scrap metal salvage & 3 boosted the quanity up to full, current numbers I'd be happy to never level salvage past 1 lol) no matter what I do even without surveying.
I think, if the system was that surveying a planet more hazardous than your survey skill allows is guaranteed to have accidents, so a player that's only willing to sink two points into getting survey level one would be able attempt to fully survey an entire system at the expense of guaranteed accidents on planets their surveying isn't up to snuff on, it would encourage players to conduct surveying runs by metering out a decent quantity of supplies, stocking up on crew and filling their hold out with machinery and going out and surveying systems until they run out of machinery to lose, and maybe trying to salvage machinery from derelicts they find after they've run out. I think maybe that'd fit better with the "you aren't supposed to have to return to re-survey something" design doctrine, and would allow players to reasonably interact with the mechanic without having to spend 6 skill points on it. And, guessing a planet might be valuable & surveying it with guaranteed losses on a hunch and coming away with a valueable survey chart worth way more than the machinery you lost getting it would be cool and make me feel like a badass frontier prospector. And also would probably work better for players to pick cool planets they wanna do stuff with once the industry update drops & enables outposts, without needing to be gatelocked behind an arbitrary amount of the survey skill