Yeah, that is also a good point.

I think part of the issue is they were also using the bees for surveillance, this is not something they could do with cloned bees. It seemed the government viewed the surveillance a big part of the bee program.

Asking someone to suspend disbelief, is all well and good - I'm pretty good at doing it - in most circumstances. But, this is obviously set in the near future. There was no need for this 'suspension of disbelief'.
When a bee 'goes down', there could have been back-up storage facilities with programmable bees, which could join hives. Simple! No need for the b0ll0cks. I didn't even mention that bees haven't got opposable thumbs!

https://en.wikipedia.org/wiki/Suspension_of_disbelief
Koalas are telepathic. Plus, they control the weather.

I didn't get the self-replication thing. 3-D printers to create metal, plastic, power supplies, cameras with interfaces to face-recognition databases, sat nav etc. etc. All within a dodgy-looking plastic hive?

I see your point there.

I am just wondering. Wouldn't it be better to make clones of the bees instead of robots if the bees are going extinct?
Sometimes the 'better' choice isn't always the one that's done. Solar/Wind/Nuclear/Oiletc, and they did say in the episode that the government funded it by billions (to get the extra method of surveillance) they could've funded bee bio-cloning instead, but what benefit would the government get from it?
Plus the bees self replicated through 3d printers in the hives. So it'd be the fastest way to solve the problem for sure, once the concept bee was designed and the code was working
Koalas are telepathic. Plus, they control the weather.

The bee probably just attacked a different part of the brain.

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The bee probably just attacked a different part of the brain.

The girl in the bathroom didn't kill herself.

Ah, that's why the bees crawled inside their victims.

No they entered the pain centers of the brain. Some killed themselves to escape excruciating pain.