A great movie, but it also lacks something (for me) (only minor spoilers)

Rating: 8/10 (1 January 2020)

Parasite is a great movie. It's very well paced and structured, and has an interesting and constantly evolving narrative. From a filmmaking standpoint, it's on a very high level.
In the end though, I still felt it left something to be desired. I felt that the movie didn't have as much of an impact on me as I had hoped. The ending wasn't as cathartic to me as to others and I quickly forgot about the movie shortly after I watched it, even though I usually think about movies like this for days after I watched them.
Maybe this can be attributed to the fact that I found it genuinely hard to really sympathise with the characters for different reasons and I didn't form a strong emotional bond with them - and without it, how am I supposed to care about their fate?
It's sad what has happened to the hiding guy and his wife, but they were introduced so late in the movie and their characters didn't really get fleshed out.
The big family (who the title probably refers to) got fleshed out quite well, but the more I learned about them, the more distant and unlikeable they became.
As for the rich family, they are somewhere between the previous two. They had some character development, but not much, and they were neither liekable or unlikeable - so basically, I didn't care about them at all.
Overall, I would still say that it's a pretty strong movie, but it lacks some kind of soul that would elevate it to a much higher level and make it truly stand out.
Therefore I also think that the 96/100 Metacritic and 8.6/100 IMDB scores are undeservedly high. This movie is an 8.0-8,5/10 for me, which means that it should be somewhere around 80 on Metacritic and somewhere between 7-8 on IMDB.