For me a Ponzi scheme would require new money entering to cover for older lost money.

If the statement of them supporting the EOS price is true its always the same money going in and out.

This can continue until the EOS price goes up but than it shouldnt be necessary anymore since people have a different price perception and will act accordingly

Apart from this current valuation is quite logic compared to other cryptos. Its a promising new player with some big names linked to it.