Correct, speed doesnt matter, just distance and scoop size (and tank size). The type of star can effect how you scoop, as some are hotter / bigger mass, which may mean you want to spend less time nearby (based on how cool your ship runs).
Anything faster is not, in fact, saving you any time at all, though it does allow you to scoop at a higher rate from farther away. I find that benefit to be minimal at best, to be honest.
And for some types of gameplay, any benefit is worth it. eg: Fuel Ratting or Buckyballing.
Think about athletes wearing skin suits to swim or run in. The benefits are miniscule, you probably wouldn't wear a skin suit to jog around the park, but if it gives even 1% faster times, that could mean placing difference in a race.
While yes there's minimum times after entering a system before you can jump out again, some want to be on that absolute minimum every time. No matter if it's an odd binary which places the exit star somewhere odd; or you jump into a large mass star, and scooping at a distance allows you to exit the EZ quicker for alignment and not heat up; or the fastest route involves every other jump is a brown dwarf, so to hit minimum jump times you need to be scooping twice normal rate to keep filled up.
For some players the largest scoop can be very useful in enough edge cases to be worth it. For your gameplay I guess it doesn't, which is fine, but I find your facts peppered with subjective opinion.
... the dbx is crippled because of this, the only people who like this ship must be new players who haven't travelled with anything else yet.
The DBX has been super efficient as a Fuel Rat ship for in-bubble rescues, arguably better than even the aspX and anaconda at times, but last I used it was pre-guardian FSDs and may of even been pre-fixed engineering, so not sure now as patches keep changing the balance.
For rescues within a couple hundred LY, max say Maia, it had advantages where it had longer jump distances (at least to the AspX), higher agility in normal space (trying to align for a C0de Red client, where every second counts), runs super cool (useful for Tactical Face Plants, where the client is inside the EZ), small pads (pre-synthesis you'd sometimes need to restock limpets get a client really stranded in a brown dwarf field out to safety. Conda would have a much further trip to restock).
The slow scoop could be mostly offset by really deep scooping, and charging your FSD while still next to the star's EZ and you scoop while jumping out.
The real time differences were minimal, for A->B, and sometimes faster than the other ships. So no I disagree only new players can like the DBX.
This thread has certainly been interesting seeing how some people perceive scooping.
