Not correct. "Mineables" that didn't do what Dash & Decred did have retained their place in the Top 10 and other "Mineables" that weren't even in our league such as Doge, Ether Classic and Filecoin have taken our places.
The reason for this is that mining is a market. The word "mining" is only a metaphor - a metaphor for a decentralised market that uses hashrate as currency instead of US Dollars. It's still a market though and if you feed supply into that market to ANY participant at zero price then you simply umndermine the marketcap.
It's fine that masternodes are rewarded.
It isn't fine that they are rewarded at multiples of the numerical monthly value they contribute to the network. Then the "free market" (that isn't invested in masternodes) just compensated by devaluing our collateral.
Anybody that doesn't understand that has no business investing in Dash, never mind governing it.