3 trait lines limitation
It’s suppose to be about designing for the future.
They merged some traits.
We now get 18 points instead of 14.
3 out of 5 lines yields 10 combinations. 2 out of 5 lines plus one specialization also yields 10 combinations. If they add additional specializations, each will yield 10 more per profession.
I was a four line thief too and now forced to choose. Oh well, MMO skills and abilities are always changing.
RIP City of Heroes
It’s a number of different things, the most important being that it’s easier to balance.
I believe, had they had implemented this from the start, we wouldn’t be clamoring for the introduction of multiple lines. Instead, we would demand adjustments to GM traits (over other tiers) and going forward, that will actually be far easier for them to manage.
(And I say this as a 4+-line mesmer, sometimes 4-line ele: I prefer the current system despite losing that specific flexibility.)