Nothing in the code suggests even anything close to this.  There are just many big blocks staking now, and more coins = more power.  This is how competition on ALL PoS coins work.  It's accelerated here because of the ludacris APR.

If you check https://chainz.cryptoid.info/b3/#!extraction you can see input sizes of 40k staking regularly since the apr jump- so it's no surprise smaller stakers (5k or less) are having a hard time competing.