I sort of half get the point you are making OP. But id also say that your idea of a traveller and explorer are somewhat flawed. What you have done is to make a definition that is 'You' and refuse to entertain the possibility that the changes are to fill a very large gap in exploration gameplay as I am sure has been pointed out.
There are many explorers who explore to find cool and interesting things, It's exactly why I explore. I don't do it to get money, I do it for the weird and wonderful. The planets with massive geological features such as tall mountains and deep canyons. Planets such a shepherd moons, planets and moons with odd orbits, close or contact binaries, enormous systems, unusual worlds with rings etc, the list are endless.
This new system based on what I saw from the stream, has the potential to be very fast. No, not instant, but if you are talking about scanning everything, the actual amount of time to do a complete scan with details of a system is way way less than the original for large system.
I recall one time doing this "Im going to DSS everything" and hit a system with 50 objects in it. It took me about an hour or so to get to every single object. Yes I could just ignore the planets I was not interested in, but i was up for the "i need to do everything" the way he describes it, you could probably get that whole system to a same level of information (details of geology, composition/materials etc) in about 15-20 mins when you get good at it.
Same thing goes - The spectral analysis works quite well to filter too given you learn the system, that and the sounds as they describe. You can in theory look at that honk and think... do i need to look at this more or not... OP i feel that you are simply the exploration equivalent of the people who complain when their little tiny money making scheme was taken away (in a world where money = fun) for you no money is not fun but its the same complaint "You took my repetitive task away from me, you have ruined it!". Fdev have tried to make the experience richer, and this looks like a 500% improvement.
You mention liking to find weird and wonderful... you ignored the fact that you can actually find surface features and geology really quickly now. These sites are somewhat rare in the game currently, not because it is really rare, but because the surface area means they are hard to find. This is exactly what explorers needed... we needed to have this enrichment.