Sorry To Disappoint The Knockers
1. OBA did have a brand new fleet of Libertys which were grounded by OBA early this year because of persistent manufacturing/quality 'problems' (see earlier threads).
2. FAA have been conducting a massive investigation into all (i.e. not just those at OBA) alleged Liberty problems and rumour is they will be reporting shortly. Presume that there are some major claims from Liberty owners so you can bet that none of them inc. OBA will comment until FAA report.
3. Recent 'crash' seems minor and, with the huge number of hours and students at OBA, the incident rate is probably less and OBA safer than 'average' FTO.