What you call weakness the Founding Fathers called a strength.
They knew this was going to happen. They knew Congressional stalemates were going to happen and they were okay with it because it meant the system was working.
To say this is a weakness is to not understand the original intent of the government for the people and by the people. EOs were not meant to break the stalemate, only to help the country get through it while the critters work out an effective solution. In addition, the Founding Fathers believed stalemates were good for the country so that frivolous major legislation was not passed.
What the demoncrats are doing now is holding the country hostage. This is all on the demoncrats. What you describe is apathy and is one of the major contributors to the fall of the Roman Empire. And is the reason any nation stumbles and eventually falls.
It is a strength as long as the country broadly views it as a strength. But when lots of lives (and livelihoods) are on the line, indecisiveness in the face of a crisis leads people to long for authoritarianism (if for no other reason than it ‘things get done’). It is not healthy for a nation that is established on limited government to go through lots of crises where the legislative branch must be ignored because it’s incapable of action.