Yes, but the services utilize human interaction to solve the captcha and that would almost certainly prevent all the openings from being taken in <1 minute.
Here's the thing though: you've got two people who are eagerly waiting for the purchase / booking of something to become available. One of them is going to do it all manually. The 2nd person has a bot to do all the form filling in leg work but will manually solve the captcha.
True, but there are multiple openings available. I guess they're probably already executing in parallel though. When I looked earlier the DBC average was 17 seconds... with browser form fillers you could beat that!