But why is the market responding negatively? because when the news was announced, a few minutes later the price of BTC actually dropped by about 3%
No, this cannot be confirmed that the news caused the dump - this is only an anecdotal link.
Unemployment rate dropping by 0.2% is a good thing, but how to significant it would be on economics needs more long term followup and not a price drop in few minutes, because that would have been due to any other reason. Let is watch and see if more jobs are getting created and how it impacts the economy.
Dont try to link every news to market movements, the second has a mind of its own. The effect or negative news is defenitely there but currently there are a lot more things happening out there such that a positive news can have a correctional effect.