Lol No. They don't manufacture that ECU anymore, that's the whole point. If you order a 'new' 2020 ECU, first off, they're a year+ out. Second, you'll get a new style ECU pre-programmed for your car.
This is why we're doing the things we do to get this done...
Yes, they're pretty bad.
Some are fine, some burn up. Chinese CHRAs.
As far as the engine goes... it depends on what happens. If the turbo implodes you could get some shrapnel in the engine. ¯\_(ツ)_/¯