A potential flaw in the $100M plan to fix Millenium Tower

TL;DW, skip to 14:51

All of the supporting forces which the new pilings being drilled are meant to exert against the building are being transmitted through 6 inch wide by 1.5" thick steel plates, and the cement sitting on top of those plates. And not very many of them, and there's no way to monitor these plates or the cement around them, and the engineers of record did not appear to have done calculations to prove the viability of these components, and when those missing calculations are performed they suggest that the load cannot be supported by this design.