In terms of actual liability - no, at least not yet. A number of lawsuits by individual investors were thrown out[3] but it's possible there will be public prosecution:
> Criminal prosecutors in Frankfurt are assessing whether BaFin employees obstructed justice by not properly investigating fraud warnings.
In the end, it's a regulator, they have to rely on auditors to some point. If Wirecard lies and EY doesn't catch it, that's on the criminal and the auditor. Still, it's hard to understate just how badly the agency fucked this one up... Hopefully, it'll serve as a true wake-up call.
Certainly seems like it - they have been more aggressive recently with other problem companies like N26, Solaris Bank, Coinbase, Deutsche and others.
[1]: https://www.ft.com/content/4f948457-678e-485c-92f7-2837064a5...
[2]: https://www.ft.com/content/587b6c52-c93e-4b2c-949a-53f6a1667...
[3]: https://www.ft.com/content/9fab6842-4ee6-4114-a35c-09bf9c62a...