"[1] The closing track, "IIIIIIIIIIII" is largely instrumental and is built on a short, flicking riff that "Colin Marston and Barr stretch".

[3] Grayson Currin of Pitchfork Media gave the album a positive review, writing, "They've [Krallice] never sounded as comprehensive and confident as they do on Years Past Matter."

[3] A reviewer for Metal Injection stated: "Years Past Matter feels effortless, as if the band have submitted to their own manic energy.

"[5] Aaron Maltz of Invisible Oranges commented: "Years Past Matter incorporates the playful and bleak elements from their previous two releases to showcase a newfound restraint that speaks to a group perfecting their craft.

"[6] Writing for Treble, Jeff Terich remarked: "Krallice takes patience, but there's never been a test of endurance they haven't yet rewarded with a stunningly immersive experience... Only when one gives his attention fully to Years Past Matter does its glory present itself in full.