Evidence of real progress will be a statement like:
‘Draghi sees no evidence of any possible channel from ECB loans to the economy’

Bank liquidity is something like wheels on a car.
Without wheels the car won’t function, but neither are wheels alone enough to make it go.

Banks are public/private partnerships, with govt’s role being liquidity provider, as private capital in the first loss position prices risk. And with unlimited liquidity provision comes the necessity of full regulation and supervision of the asset/capital side.

In the US the unlimited liquidity provision comes mainly via FDIC insured deposits, supplemented by funding from the Fed. The Fed is the liquidity provider of last resort for its member banks, while at the same time it uses the banking system’s cost of funds as its instrument of monetary policy.

The euro zone hasn’t figured this out yet.
The liquidity provider of last resort is the ECB, as it’s the ‘issuer of the currency’, and as such not itself liquidity constrained. The member nations are like the US states, and are necessarily liquidity constrained, and therefore not ‘empowered’ to be liquidity providers of last resort to their member banks.

So in that sense, as the bank funding by the ECB grows, it’s all gravitating towards what all other nations have in place. The problem is the euro zone leaders don’t understand that aspect of banking, as evidenced by the way they are resisting the shift to ECB funding, and, in fact, working towards moving banks away from ECB funding.