Jackson is now on-loan with Bayern Munich, though only after refusing to return to London after Chelsea moved to call off the move last weekend.
With Liam Delap suffering a hamstring injury against Fulham on Saturday, Chelsea sought to block Jackson's switch, though eventually relented on deadline day.
Nevin can understand Jackson's stand and believes calmer heads will prevail in the long run in terms of the player's future.
He told Tribalfootball.com: "It's a tricky situation, and I feel like I need to be honest about what happened.
"From Nicolas Jackson’s point of view, I completely understand it. However, from my own view as a former player, I believe a contract is a contract. If you've agreed a contract with a club and they're paying your wages, then you do the job and you agree to do that.
"If you're sold or you come to an agreement, then fine you move on. But, and it's a big but, Chelsea weren't interested in keeping Jackson this summer, and it was obvious that he was going to be sold. Chelsea knew they would get a decent profit for
"You can understand his frustrations, but then a club like Bayern Munich come in for you. I totally understand his anger because that's an opportunity that might not come back around. Bayern Munich is an opportunity of a lifetime, and because Chelsea had an injury problem, Jackson probably felt he was being used.
"In reality, I probably wouldn't have done what Jackson did, but I don't actually blame him for his actions. I don't think Chelsea fans will be that annoyed with him either. It didn't go well for him towards the end.
"He looked like he could be someone who was spectacular because of his pace. He's a decent finisher, although he needs a few chances to score. Everything was there for him to be a top player, but it just didn't happen for him at that elite level."
A way back?
Asked if Jackson could still return to Chelsea if Bayern pass on signing him permanently, Nevin believes a solution to the situation will be found.
He said, "I don't think it is as bad as the situation got with Alexander Isak at Newcastle because this was a short and angry response to something that happened within the week.
"We all thought he was going to Bayern Munich, then all of a sudden he's being asked to come back. These things can happen in football.
"Time heals, and you never know in a year how much things can change. Jackson's Bayern move might not work out, and he has to come back.
"I think Chelsea would see him as someone who is usable, but also sellable if it comes to it. I don't see him being a main part of Chelsea FC going forward though, regardless of what happens at Bayern. That won't be just from Chelsea's side either; it'll be from Jackson's side as well."
- Pat Nevin was speaking to Tribalfootball on behalf of Betway