Think its also worth reminding everyone about Manchester City Council's involvement in this mess. They made it an express condition of planning permission for Co-op Live that there should not be one single additional car parking space provided. I can't recall if the same was true of the North Stand expansion but wouldn't surprise me. It's then imposed a much wider no-parking zone around the Campus making it even harder for car drivers. And then, left everyone to it to sort out their own public transport arrangements.
Metrolink are contracted to provide a service across the boroughs, they receive no subsidy to do so. There are constraints on the system - there is need of new generators to allow extra capacity, and the ridiculous half-arsed turnback at Velopark shopuld be expanded to allow all Piccadilly trams to run to Etihad on match days without signifcant distruption. So, yes they can run extra trams but its on a "maybe" basis.
And that leaves the club having to subsidise the matchday bus network. Given the general level of praise for that, it seems to work well, but will soon need to be enlarged to cover more areas, and becasue it becomes a victim of its own success.
At the end of the day, we can't expect public transport to be comfortable, and its likely to be overcrowded when 50000 people all want to go from A to B at the same time. We can hope it will be reliable and frequent, and thats what we've got to improve...especially when its obvious there's demand.