there was in non salary cap era or if teams cheated
its been 3 years they havent lost many games in that time and half there players havent even hit there prime yet
Manly made the grand final 3 years in a row. So did the Roosters. Broncos had pretty much the whole Australian side at one point (97-98). Canberra were clearly the best team in 94. This stuff happens - it comes and goes.
Some team will lift and match them or they’ll fall back somewhat.