Suggestions that aren't actually suggested anywhere we could check are hard to take into account, or provide feedback on
If you feel like something in the bug tracker (which also tracks suggestions) is close enough to what you have in mind, please vote and lobby for a specific issue, e.g.
https://boardgamearena.com/bug?id=10641 for census improvement. If no such ticket has been opened yet, please do open one with enough actionable details.
That being said, as a player and observer I agree with the notion that Xidit could indeed greatly benefit from this very simple change to a mechanic's implementation which needlessly drags out both real-time and turn-based play. Auto-census at the end of games, and perhaps a player-toggleable setting to always show all troops – if BGA believes that holding back troops in some scenarios should still be possible and don't want to implement the "one action for determining all numbers which to show" because it slightly changes gameplay. Personally, I do believe the added tactical complexity is not meaningful enough to justify the added action (=time delay) cost,