Something is already in its place - dscan. Maybe more tools will be developed later.
I think this is the intent. Nullsec should be hard. Highsec should be easy. Lowsec should be intermediate between the two. This has been out of balance for a long time, and I think CCP is trying to correct that. Time will tell if their efforts will be successful but I can’t fault them for trying.
You seem to have been enjoying easy or intermediate level content in what should rightfully be the deep end of the pool. If that seems unfeasible now then things appear to be moving in the right direction. You should relocate to space which is more appropriate to the level of risk which you are willing/able to take. Or adapt and rise to the occasion.
It is viable. You can’t expect the meta to remain static. It changes, and you change with it. Or maybe you win EVE, which is fine too - just remember to give your stuff to someone worthy before you go. I can make some suggestions there.