I guess I've assumed that the majority of people have contact less these days. Could be completely wrong and just projecting my behaviour.
Even with Chip and PIN it still is fairly quick. Overall length there'd hopefully be a net decrease in time taken to process a queue.
Staff there are useless by and large lol. At the stands that serve only beer they have one person to take your money and one person to unscrew the bottles of beer and they still take way too long to serve people. It's ridiculous.