[0.15.x] Miner over uranium and something else doesn't work

[atehxx]

Hi,
I know it was already posted and got "Not a bug" label... but maybe it wasn't thought through much and discussed with whole team? Please revisit and if devs really decide it to stay this way then please post clear explanation.
viewtopic.php?f=23&t=44879
Just came across this situation and I would expect my miner to just mine stone and leave uranium alone if I don't provide acid...