Skimmed through the list.

First problem - it is gigantic. Statistically there is no chance that so many books are so revolutionary genius that they are on some other level etc.

Second problem - it is a generic top100/top500 style list, populated by exact same old "classic" fiction books like every other list on the internet.

There are some "above average" books intersperced in this list, but a casual reader will not know how to find them among the books being there simply on the virtue of being good and 50-100 years old. Being old book is not a virtue, unless we are in a history class.