Targeting the level 15 was long overdue. Most of them were promoted due to favoritism and not talented and do not contribute anything significant over a level 13.
Many of the grade 15 I knew were given LoP out of favoritism, failed many deliverables and instead of being put on PIP, was covered by their manager pulling corporate politics. The 15 were getting paid more than midpoint.
The majority of 15 in TOS are a serious waste of the department budget and I approve of them getting laid off and they won't be missed.