Take any 20 slots better or worse than BYU and compare their records

Rnk   W/L       Team
52	2-10	SMU
64	5-7	East Carolina
67	9-3	BYU
68	9-3	Memphis
69	6-6	Connecticut
71	7-5	Cincinnati
72	6-6	Utah State
73	8-4	South Florida
74	0-12	Central Florida(UCF)
75	9-2	Navy
76	7-5	Western Michigan
77	3-9	Tulane
78	3-9	Fresno State
79	1-11	North Texas
80	3-9	Ball State
81	6-6	Tulsa
82	2-10	Wyoming
83	9-3	Bowling Green
84	1-10	Missouri State
85	10-2	Temple
86	9-2	Toledo
87	3-9	UNLV

Another thing there are 21 P5's with harder schedules that are going to finish below .500.
There are 6 more that are right at .500.
17 others with worse records than BYU and 5 with the same record as BYU.

44 of the teams with stronger schedules lost more games. By losing a lot of those games they therefore make their schedule stronger.

17 teams with greater SOS have better records than BYU.

Here are the 20 P5's just above BYU.

Rnk   W/L       Team
45	5-7	Nebraska
46	10-2	Florida
47	12-0	Clemson
48	6-6	Arizona
49	8-4	Washington State
50	3-9	Boston College
51	4-8	Rutgers
53	11-1	Michigan State
54	7-5	Penn State
55	4-9	Colorado
56	6-6	Indiana
57	10-2	Florida State
58	9-2	Baylor
59	9-3	Georgia
60	5-7	Kentucky
61	11-1	Ohio State
62	12-0	Iowa
63	11-1	North Carolina
65	7-5	Duke
66	7-5	NC State

BYU did OK with their schedule based on what I'm seeing. Did this turn out to be BYU's toughest schedule - not by these metrics. But they certainly did fine with it when comparing to many other in/out of P5's.