"These ores will not be spawned" suggests that an ore with the given tag will never appear. However, if a given ore has more than one oredict tag (such as "oreAluminum" and "oreAluminium", as those tags are often both given to the same ore blocks), then blacklisting one tag will not prevent the ore from spawning.
"These ores will not be spawned" suggests that an ore with the given tag will never appear. However, if a given ore has more than one oredict tag (such as "oreAluminum" and "oreAluminium", as those tags are often both given to the same ore blocks), then blacklisting one tag will not prevent the ore from spawning.
Beyond that, this is simply fixing typos