The game certainly feel like it is easy at level 50 outside of some Incarnate trials.
HOWEVER, i would like to point out that most players and teams that i ever encounter go out of their way to fight the most trivial content for the fastest reward.
I do not see so many teams that enjoy tackling on Malta, Carnival, Rularuus and other annoying enemies that can actually crush you when they are +4.
Most of the time, level 50 teams i see everyday are pretty much 1 fully geared character carrying the rest of the team in missions specifically tailored so that it will be trivial and riskless for maximum reward. ( Council Missions and such for heroes that can negate most of their damage ).
I am personally not looking for bigger challenges but it is a lie to pretend that it does not exist. Most people simply avoid it.