Mod that replaces factions.

What's the actual problem with making them available separately? Why are all these replacements, replacements, replacements hindering the original creatures so much for the replacers? Seriously, does anyone expect that all users will rush to replace the original creatures with someone else's replacements? What is the motivation behind creating them, and especially making them replacements? Okay, if there wasn't a way to add them separately, with 200 creatures, it would be impossible, but they did it!