Ethereum Classic can be on this list as it proves to be sustainable.
As you said "can be" and in the link that you have provided i can see that ethereum classic is not included yet?
"ChronoBank will use several different blockchains to issue and trade LH tokens, likely including Bitcoin, Waves, Ethereum and NEM. The reasons are financial, cultural and ideological."
But as i remember that ETC (ethereum classic) was in the list, what is changed? Is there any specific reason to not add ethereum classic to list?