On the other hand this design has several advantages, because once the big miners have invested
huge amounts of money into their operations they are heavily incentivized to ensure the integrity
of the system.
That's exactly what any other big business, notably big [centralized] banks, is interested in.
So what makes you thinking that their wision "
to ensure the integrity of the system" would be further along with small particular participants?
Wait for the problem and a developers will find a solution in time
Why
decentalized system should depend on
some developers?