Hi,
I dont see an issue with the 5000 pages as the report would require 5000 page that is the reason system is creating it.
You can delete the data shown in SP12-Inconsistencies check.png.
It might be that sap has removed the restriction of spools greater than 2 gb and that is the reason you are seeing large spools.
1890546 - Spool requests larger than 2 GB
Check if you have this kernel in your system and that is the reason you have large spools now.
Thanks
Rishi Abrol