Mission Difficulty in 2.0

I've noticed in 2.0 the difficulty selection for story missions has changed/reduced in this patch and I was wondering why.

Previously I was able to select from the number of difficulties based on levels. This allowed me (as a solo player) to crank up the difficulty level a couple above where I should be. It made for a sort of pseudo legendary mode.

However now, as of 2.0, it's only 'Normal' (the default level--and often too low to be a challenge) and light level 240, which for me currently is impossible and I cannot select this.

Is there something I'm missing here? I've been googling/searching and cannot find anyone discussing this!