That's because of lack of opportunities. If an Olympic sport, governments will fund so more teams will be competitive. Already the top 16 teams can beat anyone the question is has there been enough chances probably no! Namibia beating Asia Cup champions Sri Lanka in T20WC, Rwanda girls finishing 8th in U19 WC, Thailand women beating multiple full members and so on.. While I don't like the idea of cricket at Olympics I wouldn't mind it for 2 editions by then many nations would do well I believe then idc about it's in Olympics or not