The Big Ten is likely to get more bids, but the Big East has the highest average NET of any conference by almost ten points. BE is around 37 and the Big Ten is in the mid-40's.By KenPom conference ratings, this season is the best the Big East has been since OBE 2011. It's a little overshadowed since they don't have an elite team and the Big 10 has been even stronger (and B12 has been solidly deep as per usual). But it's a bloodbath over there.
According to the metric, you'd have to be a top 40 KenPom team, essentially an NCAA at large team, to even go .500 in the league.
With regard to your second point, Xavier is KP #42 right now, #40 in the NET, 7th in the BE at 6-7, and a projected 9th seed, so Ken is spot on as per usual