Sure but previous RNS stated that mostly buy backs were to preserve capital position to take into account employee awards. If you look back you will find it but maybe that's changed......but this policy could be compatible with the RNS you quote. Purchase from employees says it all but if they purchase on open market then that would suggest a change in policy to that previously annunciated.
Only the directors know. But share issues like countries printing bank notes. Too much and value collapses. Presumably they take this on board. Generally though the management classs in general has become greedy over the last few decades to the detriment of owners. (Shareholders)
Generally small cap miners not participating. 24th March not long to wait for some info. The dumps still contain the metal so long term this should come good. Possible short term bounce too as oversold imho.