If eth is the apple of such large enterprises, can be changed, but also changes more and more difficult. If we do it again, it's "fork". This kind of bifurcation needs community consensus, otherwise it is waste paper.
The addition of smart contracts, into a network, guarantees
a steady flow of soft and hard forks. This change of direction signifies a significant jump away from the previous generation of crypto-currencies.
Turning to abandoned blockchains: for any group to pick up an abandoned blockchain of a big entity (like Ethereum), the group must own a significant quantity of Ethereum in order to finance the purchase of inevitable dump of coins for their smaller entity (new Eth? coin) using an abandoned blockchain.
I, really, don't think there is any miner or group of miners who have several hundred thousand Ethereum coins to finance the launch of a new coin using an abandoned blockchain - it is just FUD by people to claim there is another group of miners who have a spare 100,000 to 300,0000 Eth for such an enterprise.
Human greed is great ... If it is economically feasible, then there may be people who will invest such funds in order to get more ...
The people, who created ETC had 100,000s Eth and they were also major GPU miners. No miners are left on Ethereum Network who have 100,000s of Eth.
So, this is just FUD - there no-one involved with Ethereum mining with Eth to finance picking up an abandoned blockchain as a new coin.
I think that major Ether holders right now are ICOs' wallets and exchanges' wallet so in my opinion you're right, there are no miners with such huge amount in their wallets
On this ANN, I did forecast that ETC would drop out of the Top 10 crypto-currencies back in 2016 and those guys should have accepted the hard fork, instead of picking up an abandoned blockchain.
When ETC launched it, was around 7.6% of Ethereum' value.
ETC peaked at around 24% of Ethereum' value.
After the dust settled done, it was around 10% of Ethereum' value
Today, ETC is worth 3.5% of Ethereum' value.
And, those guys had 100,000s of Eth in their wallets, they even said they had 1,000s of Bitcoins in their wallets.
Picking up an abandoned blockchain turns out to be very expensive to do and can reduce a significant proportion of one's long-term asset appreciation potential when compared to accepting soft and hard forks the Core Developers decide to do.