I would strongly argue against there being a bias against the traditional powers. If anything, from a competitive standpoint, this will make it more fair to other teams not named UConn and make the tournament more balanced. UConn has historically benefitted from being able to stay close to home essentially all the way to the Final Four. Granted, UConn and their fans have done an incredible job of supporting the tournament by getting butts in the seats to make for a great environment; however, that also gives UConn an advantage even if they aren't the actual "hosts" of the regional site. I'd say that Albany, Kingston, Philadelphia, and Bridgeport over the past 10 years have essentially been a "home" court regional for the Huskies. This is not in any part a failing on UConn's behalf, teams in the Northeast have recognized that they can make money off of hosting a regional based off of an incredible fanbase -- and they have often done so well which means that they often get the privilege of hosting again. Given the caliber of UConn's teams, I don't know that if they were on the "road" it would have made a difference -- but it does give you a moment to wonder if Ally Mallott and Dayton had been playing in Columbus or outside of UConn's home territory, whether they could have continued to fight to a bitter end in the 2015 regional final after leading at the half.
Since 2010, UConn has only left the northeast for a regional once (Lincoln, 2014). Contrast this with Baylor who has the following travel Greensboro(2019), Lexington (2018), South Bend (2014), Des Moines (2012), and Memphis (2010). Notre Dame has even more travel with the following: Kansas City (2010), Raleigh (2012), Norfolk (2013), Oklahoma City (2015), and Spokane (2018).
While we don't know how the next 3-7 years will shape up in terms of the balance of power of basketball, what we do know right now points to fierce rivalries forming in the west as the Pac-12 has become an ascendant conference. Spokane, Seattle, and Portland have all hosted fabulous regionals in the past and they should be excellent hosts once again. The rise of South Carolina should continue unabated as they look to establish themselves as the next "it" program. UConn will turn a new Paige and start a new chapter after the departure of Dangerfield -- but UConn also hasn't won a championship since Breanna Stewart left campus. I would have to imagine that the committee had a specific list of criteria that had to be met in order for a region to host. It might be as simple as the New York area didn't put their best foot forward on applications due to how hard the pandemic hit the region earlier this year. The fact is, we don't really know why the committee chose the regions they did; however, we can get excited and start thinking about the opportunity to see 8 teams at one site --which is a real treat. For example, in 2019, you might've been able to see UCLA, Louisville, UConn, and Oregon State duke it out while Mississippi State, Oregon, South Dakota State, and Arizona State were playing at the same location for a right to the final four. That's a high caliber of teams and an exciting prospect.