LE and URA targets do change by organization and current HC goals. People need to go to Focus but in my experience it was the right thing to do. HR will absolutely help you to improve the performance and retain the individual if you think it's fixable.
From my experience, and I'm not saying this is case for all, people in Focus had undeniable performance problems that needed addressing. Stack ranking and quotas suck, and you feel like shit having to abide by them, but I've also seen managers being overprotective about underperforming employees. At some point, you have to do something about them because they'll bring the whole team down.