It was stated that it was an accident. Therefore it seems natural that it will be switched off again.
And veterans will agree that field drain was a stupid feature.
The sigh of relief after the feature's deactivation was everywhere.
For those that are new to Disco and did not know what field drain did:
It made you log, realize "the field is bad", and log off again.
It made official factions war their own indies on proxies because "indies mine field empty!!!"
It screwed over factions with lower bonuses because with a x2 and a mid-depleted field mining was unbearable and "k, log off".
It made checking for bugs in the mining system totally impossible because you could never pin down a reason for weird readings.
Field drain was a really bad addition that is not necessary any more with lower players.
It was a measure that somewhat made sense 3 years ago. Today there is no single advantage that it would bring.