While I appreciate the thought of that, I was definitely hoping for it to come back honestly, and a config to change how much ore per bar isn't really something I'd use. Its much easier/faster and much less destructive on the world to farm out some power cells from the temple and convert those to chlorophyte ore than it is to go mining in the jungle.
In my particular situation right now, playing a calamity playthrough with a friend, our jungle and ice biomes ended up overlapping severely which made finding chlorophyte annoying, and it made me realize that I missed having a more easy renewable chlorophyte method. If it were a world where I expected to spend a lot more time in (like if we decided on master or revengeance mode) then I'd probably have been fine just setting myself up a vanilla chlorophyte farm, but when you're at spawn and realize you've run out of one particular ore for like the fourth time in one playthrough, it starts to get annoying, since it's used for shroomite and spectre stuff as well.