These limits are normal for services to avoid being tagged as money laundering services. Sometimes this limit is lowered to €/$5k which is still understandable. The problem is when many services ask for KYC just once the user try to withdraw more than €1k and sometimes less than this.
Outside of the cryptocurrency related services, I witnessed two FIAT services did KYC for old members once they tried to withdraw less than a hundred dollar and the other just randomly once they detected a change in the country by the ip adresses like you can't just travel or visit another country while using our service...
BetFury isn't in this categories and what's done with high amounts is just normal to avoid sanctions.