Given your report it seems like you think Marcus wasn't really up to the task of facing Lilith. Is that the case? I know Lilith is a monster in melee, but Marcus can be quite tough himself. Also, Marcus has a number of useful abilities to support his crew. So, what do you think accounts for the pasting? Your opponent suggested that it was a flaw in Marcus (hence why he'll run Perdita, et al.), but might it have been something else? For example, do you think the scenario favored Lilith's style over Marcus'? Or, might your opponent have made a few fatal mistakes?
The reason I ask is I wanted to know whether Marcus is really underpowered in relation to Lilith, or is it really that he's a more difficult master to play? What have others found in their Marcus vs. Lilith match-ups?