Those graphics reveal a situation both insane and unsustainable. Insane because such a large country as Germany should be consuming more, it's the germans also who are losing out. Who work for export? And unsustainable because it creates a very unstable situation, where the country becomes very sensitive to external effects. Those importers are not going to always be willing importers. How does it wind down?
The Current Account Balance of a
currency zone, mostly 1 country, of around zero is fine.
It can be negative during stronger growth, but nothing wrong with being around zero.
A currency zone... and that means you have to look at the Current Account Balance of the Eurozone, which is since 2012 positive, and grew to a stable level of approx 3% of the Eurozone GDP.
(and not that one country Germany at 8%)
In a country the Current Account Balance, being for example zero overall, will vary between the regions or states.
Just like with the debt and budget of a national government and regions/states.
In fact, recuperating from the 2008 GFC, with that Eurozone Current Account Balance growing slowly from -2% to +3%, the Eurozone govts budget deficit dipping at minus 6-7%, back in 2018 at the pre-2008 value of minus 1% to zero..... a stable situation has been reached also for the Euro. The Euro likely to grow a bit in strenght which will go a bit at the expense of exports (net balance now 3% of GDP)
With the Eurozone national debts, being around 65-70% pre-2008 GBF, peaking at 90%, now at 80% and decreasing, the couple of years left before the next financial crisis will hopefully get that debt closer to that 65-70% level, to have enough buffer to handle that next crisis without too much disruption (incl for Germany for example as investment counter adding some lanes everywhere on the big and clogged motorways).
Nothing insane.
And for sure a global stagnation or other calamities that affect trade wiil take influence.
But do mind that the high trade percentages (as % of GDP) of EU countries are totally misleading when you compare with for example the US.
If you would add inter-state trade to the US-trade with foreign countries, you get a much more similar percentage as the total EU trade.
Or they other way around: deduct the intra-EU trade from the EU countries, and you get much more normal trade percentages.
=> The EU is really not that more affected than most other countries in the world from global dips in global GDP.
Nothing really insane, unsustainable or risky.