I liken it to:
1) Why'd they give us such a soft/anemic rear mount?
2) Why'd they give us such a horrid stock tune?
3) Why didn't they make the TC completely defeatable with the switch?
If you look at the link in my first post (link to where I first saw this mod),
you'll see there's several people that have had the counterweight removed for quite some time with no ill effects.