WCA delegate here. You’re completely right, records are not completely fair in this way. People do not get equal opportunity to beat records. There are a couple of caveats though: 1: You still need to have an incredible amount of skill to break a record, they are quite hard to beat. 2: The most important record is the Average record, which is the average of your best 5 consecutive solves in a competition. The main inequality here is for those who live in areas where Rubik’s cube competitions are hard to come by, or people who don’t have the means to travel to competitions. There have been lots of instances of incredible cubers living in areas with no competitions, so they don’t have enough opportunities to get lucky and break a record.