Why drop them? If you have time for 3 books, you can probably find time for 5. Writing an Interpreter in Go and Crafting Interpreters are both great, and much more fun than these.
And yet that momentum and ecosystem wouldn't have been achieved in the first place if there weren't enough merits in the language to trigger and maintain that interest.
Some languages definitely had people gravitate towards them due to being innovative in a given space, but in many of those cases, the comparative advantage was lost to other languages/techs/frameworks that simply failed to gain a market share "equal to their innovative contribution" due to the first comer's advantage.
It's hard to blame all the catholics that are sighing in relief hoping for a better successor.