looking at conference only stats:
scoring offense
Iowa 35.7
Maryland 32.3
pretty even
scoring defense
Iowa 25.0
Maryland 20.7
Maryland decisive advantage
total offense
Iowa 434.3
Maryland 342.3
slight advantage Iowa
total defense
Iowa 355.0
Maryland 302.3
major advantage Maryland
rush offense
Iowa 137.7
Maryland 250.7
incredible advantage Maryland
rush defense
Iowa 121.0
Maryland 145.3
about the same
pass offense
Iowa 296.7
Maryland 91.7
little bit of an advantage for Iowa but with crazy winds forecasted for Saturday you can probably thrown these numbers out.
pass defense
Iowa 234.0
Maryland 157.0
amazing advantage Maryland
turnovers
Iowa has turned the ball over 6 times... and created 6 turnovers
Maryland has created 9 turnovers and only turned the ball over twice
scary advantage Maryland
this is gonna be a big time big game
the last time Iowa beat both Indiana and Maryland in the same season....
Iowa went to Indianapolis.
I understand that you're trying to measure the expectations here ... and encourage a respect for Maryland. Your most significant warning that ought to be heeded is that Maryland's turnover margin really is SCARY! Besides ... you always should respect your opponent too.
Rather than exaggerating some of the contrasting numbers .... if I were you, I would have also mentioned how prepping for Maryland is a truly unique prep for the Hawks. However, in contrast, Maryland already played Michigan earlier ... and, in terms of style of play, Iowa and Michigan are pretty similar. Thus, in many respects, Maryland has a head start in terms of prep.
I'd also play up the difference in speed. Given how Maryland has recruited ... they ought to have a significant advantage in terms of speed over the Hawks. If Maryland screws up ... Iowa might get a big play ... but our inferior speed likely implies that it won't produce a score (at least, not automatically). In contrast, the margin for error for the Hawks gets further reduced ... you screw up, it can automatically equate to points for the Terrapins.
Also, the relative strength of schedule isn't too terribly dissimilar ... Maryland facing Michigan and Minnesota ... and that stacks up pretty comparably to Iowa facing Wisconsin and Minnesota. Although Michigan has the advantage over Wisconsin ... Maryland cannot hide the fact that they've also played Rutgers ... and they're arguably the worst P5 program in the nation.
Anyhow, the comparability in terms of strength of their conference slate lends some credibility in your recognition of the relative success of the Maryland D. 302 vs 355 yards on total D is a nontrivial advantage.
However, I'd also point to the Iowa's passing advantage over Maryland being every bit as impressive as Maryland's rushing advantage over Iowa. Besides, their running game has to face off against Iowa's run D. And our passing game has to face off against their pass D. (i.e. comparing Os is a moot comparison ... because it says nothing about the relevant match-ups)
You could try to make an argument about how Iowa and Maryland performed relative to a common opponent. However, if you carefully curate the data ... you realize that the comparisons are only marginally helpful. For instance, Maryland's performance against the Gophers helped the Gophers to shore-up their run D. Subsequently, the Gophers have played exceedingly strong run D against both Iowa and Ohio State! Similarly, it was clear that the Gopher's mistakes might also serves as lessons for the Hawks. Iowa will undoubtedly notice the impact that all of Maryland's motion and shifts can have ... and they'll have to game-plan accordingly in order to ensure that they defend the gaps correctly and consistently.
Also, Iowa has the benefit of the tape on how Michigan played Maryland. Apart from a special teams TD ... Maryland didn't do anything against Michigan until the game was essentially already over! Iowa can take some queues on how the Michigan passing game significant gashed the Terrapins in coverage. Obviously, Maryland will anticipate some counters ... but, even then, there is the question on whether they have answers for the mismatches that guys like Fant and Hockenson pose.
Anyhow, you pose some interesting points ... certainly ones that cannot be discounted off hand.