So, basically you want an insane amount of idols (1 idol/stage, stage skipping and 3 kills per stage does exactly that), and a game that plays itself (auto-leveling while away). No thanks, those suggestions would actually end up killing the game...

So, you want to turn this game into an improved clicker heroes. No thank, I got bored quite fast with that game, while I like this one. Ultrafast farming kills a game, as I said before.

1 per 1 . idol per level.
-balance increase talent cost.
-makes every visible level at reset worth something.
------- Or per boss, but good idea !!
idol bonus 1dps 1gb.
-main goal remains the same . excel still more .
-possibly beef up monster growth script . or not , its all good.
------- Don't understand ? Each idol gave 1-1 instead of 3-1 (dont really know what its bring for all the work and balance its need)
talent reset is free . zero idols lost .
-honestly no reset is necessary , just keep grinding and growing .
-always hate respecs with cost.
------- Totally 110% agree !!!!! I just don't understand the devs for that one...
stage skip talent.
-other idle games have this.
-unlocks +x stages . clears their goals . no chests for autocleared bosses.
-start player at stage 1 to avoid lowlevel instadeath .
------- Not really agree, you will miss idols (your first idea) and chest chance.
gold per second while online.
-actually every 2 or 3 seconds.
-because we can.
------- Don't see what its bring new.
instant autoloot toggle.
-wheres mah money !?
------- Don't understand ?
offline stage adventure progress.
-check in and level the team for more progress while you are away.
-we cannot always leave the game up and running.
-provides some blackout protection.
------- Don't see what its bring new.
3 kills per stage to progress . boss remains the same .
-24 to 40+ kills per stage is irritating .
-faster is better .
------- They need to fix something before that, you've miss the real problem. The waiting time/black screen between EACH level. With 3 kills per stage it's will be so annoying, you will never be able to do something (leveling, formation...).
rename death and defeat to challenge accepted and personal challenge.
-sounds more friendly.
-ocds often hate deaths.
-fragile ego friendly.
------- ?
hp talent.
-we have health we should be able to increase it.
------- Good idea !
ep +> enchant points. base effect should be 100% per point.
-makes more sense that way.
------- Too much balancing for nothing new, nothing useful.
xp +> experience points should be applied globally.
------- Too much balancing for nothing new, nothing useful.

talents can be outrageously expensive due to 1 idol per level.
-big numbers fit theme.
------- ?