My game still didn't get indexed. Could it be because I'm pushing fixes and devlogs?

Since no information about the indexing is given officially, we can only speculate. But it can be assumed that some actions might put a project back at the queue for indexing. Or put it in the queue in the first place, as some things are indexed right away.

No time often uses the euphemism of games being "overlooked". Maybe updates and devlogs and whatnot can cause such delays if done with particular timing. Like when it rained on a tuesday or staff was scheduled for the game, but the ordering changed.

(Seriously, if games really can be "overlooked" there is something seriously wrong with the queue system on a systematic level. Long waiting time, ok. But falling through the system and being forgotten? We no longer have paper punch cards, this should not happen.)