The third-placed Crows are due to travel to Launceston for a blockbuster clash with sixth-placed Hawthorn on Friday night.
But the game has been overshadowed by a report on the Nine Network on Monday, which said Indigenous young gun Wanganeen-Milera had indicated he would not join Adelaide due to Walker's racist comment in 2021.
Classy half-back Wanganeen-Milera, 22, is out of contract at season's end and both the Crows and Port Adelaide are attempting to lure him home to South Australia.
Walker, 35, received a six-game ban and $20,000 fine from the AFL in 2021 after he was overheard making a racist comment about North Adelaide's Indigenous player Robbie Young at an Adelaide SANFL match.
Wanganeen-Milera's management immediately denied the report while the St Kilda star reportedly called Walker to say the incident was not a factor in his decision regarding where he will play next year.
When asked if he had gotten involved after the story emerged, Nicks said: "No, other than putting support around the people I felt needed support.
"I didn't like the way it played out at all. I think it was unfair to a lot of people.
"But no, I didn't get any more involved than checking in with Taylor, for example, just to make sure that he knows that I'm proud of what he's done since what was an unacceptable moment four years ago.
"He's done a lot of work on educating himself and he's actually probably done more than anyone at the footy club, but our whole footy club's improved off the back of that.
"Other than that, no, not involved."
Nicks conceded in-season speculation around players' futures was part of the modern environment.
"It's part of the deal: pressure to perform on field, but there's also pressures that come off field," he said.
"As I mentioned before, some of it I'm not a fan of, the way it plays out.
"There's a little bit of a lack of accountability there, but I think our players deal with it really well."
Nicks refused to comment on whether he believed Adelaide were still in the mix to secure Wanganeen-Milera.
"We don't talk about players from other footy clubs," he said.
Nicks instead wanted to focus on a huge clash with Hawthorn, who have lost James Worpel (corked quad) and dropped Finn Maginness.
Nick Watson returns from illness and Henry Husthwaite has been recalled, while Adelaide named Lachlan Murphy in place of James Peatling (suspended).
"They're in good nick, we're in good nick, so it should be a great contest," Nicks said.
"They've sorted us out, especially last time we met here at AO (Adelaide Oval). They put us to the sword, their small forwards.
"They're a very dynamic group. If they can get the game on their terms, nearly impossible to stop."
Third-placed Adelaide (9-4) will be looking to extend their winning streak to four matches against sixth-placed Hawthorn (8-5).
