That serves to show how bad the system scanner is: Players stopped scanning because it's a PITA and they don't want to use it. If it was fun to use, they would use it.
A possible solution is that everyone either automatically has the system maps of all systems within the bubble or that everyone automatically has the system maps of all systems within the bubble they have have visited. If you go outside the bubble, you have to use the system scanner to get the full map. We could argue wheather we should automatically have the maps of all systems outside the bubble that have been fully scanned with the system scanner for those systems we have visited or if we should have to scan the already scanned systems again.
That would mean that players only need to use the system scanner when it makes sense to do so, i. e. when they go exploring, and it would make sense that they get well payed for the data. It doesn't make any sense that the galactic cartographers are spending tons of money to buy data they have already bought hundreds or thousands of times. It would make exploring fun again because we're not already tried of using the system scanner long before we actually get to or want to go exploring, and it would be a separate activity in its own right. The system scanner wouldn't get in the way anymore but be a useful tool that actually adds to the gameply and the fun.
Yep, that's exploration

Hence my suggestion above; you gave me that idea