Thou art thyself, though not a Montague.
In its first year, CESA had teams in the same age and gender group playing premier -- one a CESA Premier team, another a CESA Challenge team. CESA has a Premier team playing both Premier and Challenge leagues this year. It's not a bijective mapping. Teams compete at the highest level that they possibly with the baseline described by the name.
There seems to me to be a whole world of difference between that and the argument that a "Challenge" team would be playing in the classic league. If I'm a parent and my kid plays in "Challenge", I expect a certain level of competition and if I get more I'm thrilled. If I get less, then I start thinking I was misled.
