It was mentioned earlier, but just to stress - what you have posted here about EU regulations is a complete untruth. It is a choice of the UK government to provide support or not, people repeating lies like this is why we are where we are.
To quote the actual UK government, "where a company is of strategic importance and all other options have been exhausted, the government may consider providing bespoke support. This is a capability that the government has had for many years"
The government has concluded a deal that is positive for all parties.
www.gov.uk