Where do I start ?
The main reason (taken from the Wired artice) would appear to be financial incentives.
This would bring us to State Aid:
"In principle, state aid is not allowed in the EU. However, some state aid is beneficial to the economy and supports growth and other policy objectives. State aid can be given to support a wide variety of activities including research and development, environmental protection and aid for small to medium-sized businesses. The state aid rules allow for good aid, which is necessary to deliver growth and other important objectives."
Taken from: https://www.gov.uk/guidance/state-aid
They don't seem to have done Germany much harm - you know, that country "we" reduced to rubble 75 years ago... not done bad for themselves with all those rules, restrictions and red tape have they?
Be careful of using Germany as a role model - they only just, by a gnats crotchet - avoided a recession in the last quarter.