I'm ditching my coinomi wallet. Ivan raised good points here on how they responded.
I'd also recommend transferring your assets to a new wallet, the issue here is not just that someone's life savings were hacked, but that Google could well have a enormous cache of 12 / 24 seed words from Coinmi's API over the years that some employees may start to look into.
If a wallet has been compromised, ALWAYS move your funds. Don't wait for further reports of hacks, as you might be included in it.