we got 4 Emblems for one B'Tran run. (one mission that gave 1 emblem and was NOT on a daily counter, and one daily with 3 Emblems).
now we get 1440 dilithium for one Exploration run.
so... in the end the one Emblem, that was not on a daily counter, has been removed.
Every exploration set should give 480 dilithium, without a daily cooldown.
Result: we get more options in what sector we want to do our daily, but we get LESS dilithium for it.
one step forward, one step back.
That's not 100% correct at endgame as I discovered. While you are correct that the 1 emblem set of B'Trans is gone. The B'Trans can be gouped with the Explore Strange New Worlds daily for over 2K in dilithium for one set through the B'Trans.
I'm sure some people have farmed that 1 emblem every thirty or so minutes, however depending on perspective the overall change can be a win, lose or wash.
I'm preferring to see it as at least a win or a wash... the players do deserve one... after all... you know... F2P... Season Five... Dilithium itself... nevermind, I'll save that rambling for another day.
EDIT: Whille typing this someone else posted it. Leaving for posterity.