Yeah... weird
The issue of "contention" superficially makes some sense (i.e. one service could be "best effort" and the other is "lifeline"), but SDH/ATM (The underpinnings of all the DSLs) allow allocating hard minimum limits and priorities on more than 1 virtual path/circuit (VP/VC), so it's actually a moot issue.
The idea of having 2 services terminating in different places in the premises has no relevance to what technologies they use (Surely 2 x FTTP is better than having an HFC in the mix?) and the repeater/extender argument is entirely valid.