Kenny MacAskill's outburst on trams

I was astionished to read SNP MSP Kenny MacAskill's outburst on trams recently. This is quite a conversion. Here’s what he wrote only a few years ago.
"Instead let us recognise that at the start of C21 the route ahead for the City of Edinburgh is a light rail network that adds to both existing and reopened lines and that compliments and dovetails with other current and future modes of travel........
........The vision for Edinburgh has to be to aspire to be a truly Capital City. That means to have the public transport networks taken for granted in other European Capitals such as Copenhagen and Helsinki. Even Dublin is now recognising that and is preparing to take its city forward into C21".
He adds in conclusion that
"Edinburgh is now a Capital City it must not only think as such but act in a manner befitting that title. Now is the time to abandon CERT and go for a light rail network."
He claims its not trams, its the scheme that's the problem. Nonsense! this is all about short term political gain. But what an insult to the Capital city. Instead of £1 billion investment in Scotland's capital city which would bring benefit for the whole nation, MacAskill would give Edinburgh £4m to run a few more buses. How is this promoting the nation and its Capital as he purports to do? I think he should hang his head in shame.