So things might actually change. But then again, it is easy to criticize when you are not in power.
However your second point is not correct at all, Germany had made their beurocracy specifically in such a way after WW2 that one person cannot dictate/rule the country. Every decision must pass through appropreate ministries first. This is one of the reasons COVID vaccination rollout was so slow in the beginning but after all the "approvals" were met they are vaccinating ~1m people a day. Chancellor in Germany is not even close to power of President in US, for example.
I don't find Russian involvement very believable. Belarus don't need Russia to force a plane to land, they can do their own state-funded terrorism like any dictatorship.
Russia needs it too, since they can't sell with profits internally.
From my POV, it's just an additional option you get to sanction them with if they are acting in bad faith ( again) while getting cheaper options.