Probably because Patterson/Rich are actually more proactive than the other characters that have been splintered off into their own uninteresting subplots.
Basically Gabriel and the aftermath of Miller's death and knowing the details behind Nate's dad's death since Miller was about to say something before he got killed.
Exactly and it was needlessly convoluted and a lot did go wrong with her losing her memories and everything especially since the FBI has already been breached several times already.
The last scene had Tasha and Blake on a plane 'working together' after Blake killed Roman and was about to take over her dad's business.
It just seems like Tasha is undercover yet again, like what she did last season.
It was obvious since Blake wasn't going to carry on as a villain much longer, let alone a full season.
I guess Tasha was more focused on Blake taking over the company, instead she's being roped into yet another undercover mission.