Exactly. What prevents someone who sends $2,500 to somewhere to split that amount to 5 equal parts?
i haven't read the draft yet but lawmakers usually account for this. for instance, under american law, what you're describing is a crime called "structuring" or "smurfing". here's what the IRS has to say about it: https://www.irs.gov/irm/part4/irm_04-026-013
basically, if you conduct transactions (in any amount) for the purpose of evading CTR reporting ($10k threshold) then you are guilty of structuring.
i would be very, very surprised if the FATF magically forgets to establish similar recommendations.