Call me surprised on that one. The banks were pissed to say the least about the interchange fee cap since it was introduced in 2015 - estimates run on a yearly loss (aka more money in the hands of the consumers) of 1-2 billion € a year (per https://www.euractiv.com/section/economy-jobs/news/europeans...). I would not be surprised if the other card networks follow MasterCard here, even if it's just British consumers affected it's still a lot of money that they're leaving on the table.
The "downside" (from an US point of view) on this cap is that European credit cards don't have ridiculous card bonus programs that are in reality subsidized by all people not paying by credit cards.
The "downside" (from an US point of view) on this cap is that European credit cards don't have ridiculous card bonus programs that are in reality subsidized by all people not paying by credit cards.