I will explain why lots of honest hatchers is irrelevant.  Dishonest hatchers will get caught and this has been explained already, so I'll leave those out of it.

Remember, there is only a finite amount of work in the system that needs doing at any one time.  No one can create work that adds a share of the EMU pie to them, "ping ponging" is detectable and sending millions of tiny transactions will not help because the EMU distribution is volume & sum of value based.

Lets say A & B are hatchers

They both have the same work load capacity, and over time, they both do an equal share of the work.   D rolls in with 1 million amazon instances, which combined are 1 million times more powerful A & B.

The work load in the system is the same, so the power is no advantage at all.  That's exactly the same as D rolling in with a supercomputer that runs just 1 node, doesn't matter, the work isn't there.

But gosh, all them nodes!!!  Doesn't really matter either:

1) It wont massage the trust value of your collective nodes, you do a transaction you get some trust, sure the distribution of trust is spread thinner, but no one gets a trust advantage.

2) Real world cost, if some guy, wants to rent 1 million Amazon nodes and perform 99% of all the transaction work in the network, that's up to them.  It's still work.  Some miners have HUGE hashrates, and rake in a lot of BTC, but they have had a real world cost, so why shouldn't they get the reward for that?  No one seems to have a problem with that model so why should it be different here?