The Oilers do have legit top 6 talent, they choose not to play them to their strengths.
The Oilers have been very successful with McDrai split up and even though the Podz-Draisaitl-Arvidsson line didn't score many goals from wing, they were still heavily a + line. After that line got split up, Podkolzin's game in particular has cratered. Shocking.
The team has hit a bit of a rough patch since McDrai was put together, not too surprisingly tbh.
Knoblauch is a great defensive coach, best of the McDrai era by a significant margin, but he's not so good at piecing together forward lines. The Skinner deployment is baffling, the reliance on Ryan for so long was confusing, his constant line juggling, the now reliance on McDrai etc. Just too much chaos with his decision making.
The Oilers have 4 legit top 6 wingers. Hyman, RNH, Skinner and Arvidsson. Arvidsson hasn't potted the goals but I think they will come and Skinner, well I've said my piece on that already. There's top 6 options if they are used correctly.