The Celts were 25-5 against the West last season and won the championship, yet some people here still consider them just an overrated "Eastern Conference" team.
I think the point that was made is that it is easy to make the playoffs in the east... not that the Cavs are bad because they are in the east. The top 3 are great teams but after that its safe to say all the playoff teams in the west are better than the 4 through 8 teams in the east.