Re: Politics is nothing to do with it.
"By then the MS lock in will be total" - when you're a city council it doesn't matter if you're locked in. Had they got the Linux project to work, they'd be locked into that. It's not like they'd be able to change distros or something at the drop of a hat.
They have been using it for well over a decade. If it had "not worked" then they would have given up after a few days. It fact, rather than complaining that Linux "didn't work", a 2012 report commissioned by the city boasted that adopting it had saved them 11.6 million Euros over the preceding years.
https://www.theregister.co.uk/2012/03/29/munich_linux_savings/