The two statements don’t need be false or contradict the fact that it was mishandled.
A flight ban simply makes traceability harder, as people reroute through multiple hops. Victimizing Chinese communities is bad and will only make things worse (as people start hiding from authorities). And in the end, the virus was in Germany already in January, according to the tracing, so focusing on China would have helped little.
BUT
they could have mandated self-isolation for two weeks for all flight passengers disembarking, regardless of provenience. You get a tourism hit but slow down infection rates substantially.
They could have ensured better procedure for care in death. Those elderly people dying in high number right now, have probably infected hundreds of others already; they should have been tested weeks ago, and handled as infection carriers.
They could have prepared temporary field hospitals to spike capacity like the Chinese were forced to do. Chances are they will need them anyway, might as well do it advance than later under pressure.
They could have started shutting down large gatherings and prepare for curfew measures.
They’ve done none of that - and I say “they” as in US administration, UK administration, Australia (where they’ll even host a F1 GP with crowds this weekend!), France etc... They all hoped it would go away “on its own” like SARS did. Sadly, SARS was a lucky strike, this is the real deal.