Sorry for my English.
I am very surprised to see that bots is aimed to be a temporary solution in factorio. From my experience, bots seems to be designed as a late game transportation solution, especially for megabase.
Belts can be acquired much earlier in the game, use no energy, and most important ...

I reboot Windows and the crash gone away.
Maybe it's a system problem.

Had a first crash while playing the game, after that the game crashes every time load this save.
Even got a crash try loading another previous save, which has no problem loading a while ago (also 16.16).

I don't have the log and dump for the first in game crash any more.
These files are related to ...

Sorry for my English, I know it's not very good.

Factorio is a sandbox game. It should focus on encouraging and helping players to create what they can imagine, not limiting them.
Balance between bots and belts is some issue, yes. But not more important than what we need to create a awesome base ...