Abom's point is more along his xFIP perhaps being a stronger indicator of what we should expect from Wheeler than his FIP which led to consecutive 4 win seasons. His FIP- the last two seasons were an excellent 80, but his xFIP- were more around ~93, which is more of a 2.5-3.5 win starter over a full season. It's certainly good, but as a 29 year old (with injury history to boot) there's definitely risk that he regresses to his xFIP and the 5/115 that you're suggesting doesn't look too great and at best we're just about breaking even on someone taking up a significant portion of our payroll. Does Wheeler actually have the ability to suppress homers? Maybe the FO's internal metrics believe so and then it could be a steal as you're getting a poor man's ace for good value.