I will disagree, we ran a similiar 3-3-5 with SAM putting his hand in the dirt a lot, and JACK being a de facto DE. But there are differences in assigments and most notably gap control. At times, this defense looks like an undisciplined schoolyard defense with everyone running to the ball, responsibilities be damned.
by personnel, yes it was a 3-3-5 under saban, but by alignment it was a 4-2-5 as a vast, vast majority of the time the OLB (Jack or Sam, didn't really matter) was up on the LOS - sometimes in a 3 point, but very, very often in a 2 point.
The same is true now, honestly. The WOLF is an OLB so it's technically a 3-3-5 personnel set, but it's aligned most often as a 4-2-5 with the OLB up in the line just like he used to. Nothing there has really changed. The grouping and the alignment are essentially the same as they used to be.
You are 100% correct in that it's very different from an assignment and gap control standpoint. That philosophy is independent of the alignment or grouping though and that's kinda the point. It's not the alignment being a 4-2 that is causing the issues, it's the philosophy of gap control and assignments. Womack is a 1 gap, attack the LOS guy. In theory it can create more pressure and disruption, but the downside is if any given dude gets beat in his gap and the play goes there, it's a problem. Saban was a 2 gap guy - less pressure maybe, but also has more redundancy and LBs able to run free a bit more.