Its hard to argue about something that obviously nobody is familiar with. Their is one thing that is fact not opinion and that is 16Qam is more tolerant to noise than 32 and then 64,128 and so forth.
This is true and the TDMA carrier listed is the 16QAM the other two are DOCSIS2.0/3.0 most likely 32 or 64QAM The issue I referred to is on the US0 ATDMA carrier.