In other words: ETH is centralized and susceptible to corruption.

I thought that is democracy. Like bitcoin, it has forked many times. Every new version coming out, the community decides if it wants to upgrade or not.
You're mixing apples and potatoes here. Bitcoin mostly uses soft-forks in order to improve its capabilities. Bitcoin has never used any kind of coin-control or bailouts which is exactly what ETH is going to do. If they do that, ETH is not immutable. Period.
In Bitcoin it would take total overwhelming concensus to hard fork a change like this.
Which is obviously never going to happen. Only foolish people would support something like this.
And if it was soft forked in under the table presumably the value would plummet because of it?
The instinct value of a blockchain lies in the decentralization and immutability. Such a move would negate both, so I expect the answer to that question to be yes.