While the upcoming published modules seem to align with what you're saying (i.e., "An Adventure for 3rd Level Characters"), I have certainly seen convention games (in other systems where it mattered) ask for characters of a certain XP, and in the group I'm in (for the last 19 years), we've had campaigns where replacement characters or new players' characters came in under all sorts of ideas, including derived XP totals.
I can't say if DCC should drop or keep the XP tables, because I haven't seen them in play. The play-testers that have been running this game regularly for the past year or so are the ones in best position to advise on that...
Gnome Boy (a.k.a. "Jon") • DCC play-tester @ DDC 35, Feb 2011. • Beta DL 2111, 7:00 AM PT, 8 June 11.
Playing RPGs since 1977 • Quasi-occasional member of the Legion of 8th-Level Fighters - Holds the power to play gnomes at will!
Pbp Secret of Bone Hill characters:
Flavia, WAR, Beekeeper, L, Str 10, Agi 10, Stm 7, Per 10, Int 12, Lck 7, AC 10 hp 5, staff, jar of honey, 10-ft pole, 1 pc chalk, 50' rope, 2 torches (1 lit)
Hector, DWARF Apothecarist, L, Str 5, Agi 11, Stm 12, Per 10, Int 6, Lck 10, AC 10, hp 11, sword, shield, cudgel, steel vial, chest, flint & steel, empty flask, lg sack
Chendris, WIZ, Alchemist, N, Str 11, Agi 9, Stm 12, Per 15, Int 13, Lck 15, AC 10, hp 3, staff, empty flask, 50' rope, 2 candles, lg sack, oil (1 flsk), 1 torch, snakeskin tome; speaks gnoll
Darrow, CLR, Hunter, N, Str 11, Agi 12, Stm 8, Per 16, Int 7, Lck 12, AC 10 hp 5, short bow, 6 arrow, 10-ft pole, deer pelt, torch (lit)