Inspite of Argento's dissatisfaction, Suspiria (by Guadagnino) is an evocative reinterpretation. Maybe it is the original creator's prerogative to criticize the execution when remaking classic cinema, peronally, I find the criticism also takes itself too seriously.
Reimagination through the milieu (post-war Germany) affords a shift in depth and focus without complicating the narrative with self-referentiality. Although details have been torn apart for lack of relevance, to my mind, if the director chose any setting, naivety or irrelevance would still be the low-hanging fruit of critics. The film simply doesn't strive to show a connection, and contextual elements are illustrated with proportionate gravity and relevance.
If one has to draw comparisons, there are diametric opposites in many ways. Mainly through through cinematography. No doubt Argento's inspired so much that followed and this ultimately binds it to the genre it inspired. Four decades later, we have a histrionic period drama fused with a supernatural fable forming (unwanted) homage to Argento's suspense, as cinema for today's audience.
I loved the original score by Goblin and others they did for Argento and Romero. The selective moods created by Thom Yorke, incidentally harmonic vocals and creepy piano motifs fit. Visual stylistic references to Argento are the use of light, costume and retro decor which jarrs to effect but again, is not out of place.
In terms of conceptual themes, I think it did well. Perhaps it is not something that everyone will he happy with. Then again, it's not trying to please everyone nor explain connections between a timeless demonic coven in post-war Germany. Let it wash over you and you might feel its crestfallen tones and realism.