yes, but no. I wouldnt have in any occasion more then 30000 sats distribuited across different mints, ecash dont replace self custodial lightning nodes to stack more sats, and even dont replace the onchain cold storage.
Frankly if one of the 3 mints rug my 10000 sats its terrible, but not so terrible. 
Theres space for improvement in making proof of lyabilities easy and to implement some clean game-theory solituon to make the trust easyer to reach and avoid rugs (microfees and web of trust are a good starting point...).