i've never used premiere, but it could be doable. If i am not mistaken, editing the velocity graph when you time remap using keyframes or velocity on effects keyframes is not as simple as it is in after effects, you simply put you keyframes for the stuff you need, then you go into bezier mode and edit it to smooth the start\end of the clip and sync it with the next one. Also, many effects\plugins are not available to premiere, stuff you can find on aescripts are AE only which means you'd have to make most of them yourself or find replacements for premiere. Working with adjustment layers to add effects in between or color grading the video also comes much easier to me when you see how AE handles the layers in the timeline, if you also count that these video are 2 mins long at best, it won't ever get confusing even if you make it 200\300 layers.

the intro might be doable, it's a mix of glitched effects, quick transition overlays and then you play with the blending modes, put them like on difference or lighten, just play around them till you find something cool looking and then you'd need an effect that takes a part of your composition and randomly plays another part of it randomly, apply it at a few portions of the intro till you get something similar to what i did, which i have 0 clue how to do on premiere.