For glider pilots, the last itemized possible derogation is probably the most relevant one; indeed, the United Kingdom is making use of this possibility: The UK CAA has filed such a derogation to exempt an exemption for pilots of sailplanes and balloons from Part-FCL licensing requirements in the United Kingdom - while gliding clubs (or the British Gliding Association in the UK) use the time to set themselves up as DTOs to offer EASA-compliant training courses towards the LAPL(S) license or the SPL license: