A: Yes. This should be treated much like the Goals 10 Cards in Hand or 5 Keepers from the unthemed versions: if more than one person meets the minimum required, but one has MORE Keepers involved in their winning set, they should be considered the winner. We will be updating the rulesheet and/or cards on subsequent printings to reflect this ruling.
Of course, if both players have the same length word, then you default to the standard procedure, which is to keep playing until only one player meets win conditions.