With regard to conference tourneys, those games literally count the same as other games. Some teams get extra data points, but either way you get about 33-35 games by Selection Sunday, and the last 1-3 games a team gets from the conference tourney will represent about 3-8% of their season. Every team gets the same resume-building chances with their respective conference tourney, so it is not like those wins are unanswered by the competition from other conferences. By the time the conference tourney rolls around, generally the hay is in the barn & the tourneys will make little difference for most teams.
Also, it is February 23, and I feel comfortable that "heading into March" this OSU team is making the tournament.