If CTC are looking for instructors to teach on their integrated course then they will need people who meet the EASA requirement to become an Instrument instructor. This requirement is 200 hours flight time under IFR. Without that you will be of no use to them
FCL.905.FI FI — Privileges and conditions
(g) an IR in the appropriate aircraft category, provided that the FI has:
(1) at least 200 hours of flight time under IFR, of which up to 50 hours may be instrument ground time in an FFS, an FTD 2/3 or FNPT II;
(2) completed as a student pilot the IRI training course and has passed an assessment of competence for the IRI certificate
What surprises me is that they only want 150, not 200 hours!
Quite clearly this is going to impose a major problem finding future instructors who can teach for the IR. The UK CAA recognised this back in 1998 pre JAA but it appears nobody has learned anything over the last 14 years!