In the US, wouldn't a more similar situation to the current situation where the executive isn't having enough support in the legislative, be a politically motivated impeachment? Whereas here the parliament can simply vote out the executive. Of course, that comes down to the issue of parliamentarism.

In general, I think the negative majority works pretty well in the system, in particular in combination with the budget with the most votes is passed, preventing budget stand-offs. The main problem now is the combination of a fractured political landscape and the liberal parties refusal to negotiate with the Left party.

On the local and regional level there is much less problems in forming coalitions despite results that were often similar to the national.