Huh? Why would they drop development of key components to their main product?

What is Mozilla without Firefox?

Update:

https://www.youtube.com/watch?v=9lkIX5ryZZ4

Basically, Mozilla gave Servo employees the foot and the project was taken over by the linux foundation.

Servo dev has been restarted (mostly) during 2023 and the changed Firefox made to their servo implemementation is now being added to servo in batches (ongoing).

So Servo team is aiming to become a full featured (standalone) web platform (browser).