Three Cypriot Brokers to no Longer Provide FX Services

Three brokers regulated by the Cypriot agency CySEC have decided to cease their operations within the UK. Those brokers are Maxiflex Ltd (EuropeFX), Maxigrid Limited ( Dualix & AGM Markets by trading name), and Reliantco Investments (UFX). The British regulator Financial Conduct Authority (FCA) also confirmed that information and said that the brokers have made their decision on their own accord, without any interference from the agency. The FCA also issued a statement:
“Existing UK account holders with open positions and/or cash balances should review notifications provided on the respective firms’ websites and/or firm communications to UK clients sent by email or available at account log-in. The firms should clearly set out the process and timelines for their ongoing interactions with their existing UK-based customers.”
The reasons why the brokers decided to do so are unclear for now, but the CEO of EuropeFX also issued a statement, according to which "uncertainty of the markets and ongoing developments'' are behind this decision.
Source (https://www.forexbrokerz.com/news/cypriot-brokers-fx-services-uk)
What does he mean, uncertainty of the markets? Fewer people want to trade? Is that the only reason?

nothing to do with "fewer people wanting to trade" but everything to do with brexit.
cysec bafin etc regulated used to be able to passport into UK according to ESMA regulations. now that the UK is out of the bloc, firms that want to operate in the UK needs a FCA issued licence. not a FCA approved passport licence. FCA's adequate capital requirements are way higher than cysec / other eu regulators.
hence not a wise move to tie up large capital for a small market share like the UK given that trading conditions are alrdy not favorable. (30:1 leverage cap)

That's a good point, I don't know why I didn't think about Brexit.