A bit of hyperbole for sure, but it really is lousy
The "bottom half" would be 1-11 Purdue, 4-8 Illinois, 5-7 Northwestern
Between those 3 schools they went 2-22 in conference
Then the rest of the bottom half would be 5-7 Indiana, 7-5 Michigan and 7-5 Penn State
Purdue is 122nd in PF and 114th in PA with a 23ppg average loss - their only win was at home over Indiana State ..... this magnificient 6 point home win came over a school that went 1-11 on the season (the only win was over a D2 school) - looking at Indiana State against just FCS schools they lost by an average of 22 points per game ... while saying the entire bottom of the big 10 is on par with FCS is absolutely hyperbole, it would be instulting to most of the FCS to say that Purdue is on their level - that is how bad this Purdue team is
I know you have a soft spot for Illinois, but they were awful as well squeaking out a 4 point win over Purdue ... they also had a comfortable 8 point win over 7-5 FCS Illinois State, they also clubbed 0-12 Miami .... the thumping over Cincy was legit though - they were absolutely rolled by the top half of the big 10 though and a "decent" UW team
Northwestern beat a 1-11 Western Michigan team, a very good FCS program in Maine, a 1-11 Cal team, a mediocre Syracuse team (which would fit in the lower half of the Big 10) and a the previously mentioned bad Illinois team
Next is Indiana - a good offensive team with a terrible defense ... much better than Purdue which they beat for one of their wins, another came with a thrashing over that terrible Indiana State team that Purdue struggled with, another win over a bad Illinois team - so they clearly aren't in the basement of the Big 10 but also clearly inflated their record against that group ..... very good wins over Penn State & Bowling Green ... they just weren't competative at all against the good teams on their schedule
Penn State has their issues and O'Brien is doing a nice job - Kent State, Eastern Michigan, Purdue & Syracuse were easy wins as they should be ... struggled with Illinois but grabbed the win .... they did beat Wisconsin & Michigan though and played Nebraska and UCF close
Michigan blew out Central Michigan, squeezed by UConn & Akron, needed triple OT to beat Northwestern and had nice wins over solid but not spectacular ND, Indiana & Minnesota
Overall a pretty lousy group
The bottom of the ACC is as lousy at the bottom and worse in the middle .... however the top of the ACC isn't close to being on par with the bottom of the Big 10
Both conferences are lousy though
This shows up in both FSU and OSU as far as strength of schedule .... main difference is that FSU is killing everyone it faces while OSU is letting anyone with a pulse make a game out of it .... some could be style of play (running attack limiting total amount of potential offense for OSU) .... just looking at the teams though, I have a hard time buying OSU as a top 5 team while I think FSU very much looks the part - this is completely subjective though