Have to disagree i'm afraid and this is just my opinion.
A normal queue the people are usually about 2ft apart so it may not seem much but 2M is an extra 4 1/2 feet between each person. Then as they enter that 2 metres would have to be kept along with a route, no free walking, doors would have to be one person at a time with a 2M gap in to arena not herds of people so that all takes up time.
Stairs up or down only, that would mean everyone in a single block can only leave via one staircase as one side would be up and other side would be down. What if one person on the side of the block on the up side stairs wanted to go down the stairs? This would mean passing each other on a row to use the stair case they wanted to use, this would also not be permitted due to social distancing rules. So does that mean they'd have to go up to then go down? Having to use the toilet you'd have to pass people, again you wouldn't be able to.
Season ticket holders from one household have season tickets next to another household without 2M in between, many season ticket holders sit next to other season tickets that don't come from the same household, so there lies another problem and what about row in front and behind? They're not 2M away.
As for season tickets holders only saying they would get better adapted than a random stranger isn't a valid point. What next, ban children as they move and run about in the arena more than anyone.
You could not put in place a route system within a arena. I've sat in my seat on a period break and the people move each and every way. With a 15 min break you couldn't get everyone to where they want to go with a routed system within that time.
I've managed at the WNIR and Millennium Stadium, neither of those places in my opinion could be set up for social distancing with a good crowd and same goes for Viola.
I want to see our team again, i'd love the season to start as soon as possible but not at the cost of maybe spreading the virus through the fan base.