But it's not grindy, nor was it ever intended to be grindy.
If SE had wanted to it to retain some sort of grindy prestige factor, they would have never expanded from the original 5 wards without subdivisions to the current 21 with subdivisions. They would have never reduced purchase prices to a fraction of their original. They wouldn't have added relocation, instead forcing players to start from scratch if they wanted to live in a different location.
You've got some warped idea of what housing is supposed to be.
No one is getting a better game experience by being forced to stare at another player's Paissa house. Instanced doesn't mean others can't visit. I wander into random apartments frequently to see the creative ways players use small spaces. I don't get any sort of preview, I just walk in out of curiosity assuming the apartment is open to visitors. If we had instanced house plots, I'd be doing the same thing with them.
If you feel a need to show off your house, then invite others to come visit it. Considering how empty wards are even in the best of times, that's a better way to make certain your house gets seen than relying on almost non-existent foot traffic to do it.