re: Why are we so upset?

As already stated, this team has no obvious superstar to anchor around, on a roster with as high of turnover as any team, that lost a key cog days before the season, all in a new(more complex) defensive scheme.

The idea that they would hit the ground running was a hope that should have been buffered by realistic expectations of likely growing pains.

Despite that though I see a budding superstar in Ingram who has demonstrated so far he has worked on most of his areas of weakness, a roster as deep with upside talent as any in the league, veterans that will either be able to find their footing or have a reputation that will afford the franchise ample opportunity to sell them with net positive value, and a team that has shown flashes of what it can be(mostly in the first quarters where the chemistry maintains itself best) once the chemistry improves and calcifies into an identity
we can carry through entire games and the coaches get comfortable with what rotations/lineups work.

And as the season goes on I expect Bzdelik’s defense to be more comfortable for players and the mix of offensive and defensive chemistry, with insane depth from high upside players, to give us an exciting product.

But honestly, if we are going to get chicken littles for the next 20 games I’d rather those casuals just take a break and come back when the bandwagon is ready to go. This is the NBA, unless you have veteran superstars, things take time.