The reason for the controvery is we (the UK) have a large number of UKR migrants that are trying to bring their family and friends to safety to be with them.
Having to apply for a visa is the literal contradiciton to this.
The church/community group sponsoring to place with a volunteer family option seems novel too.
Otherwise as a refugee fleeing a war in Ukraine, I'm not really sure why the UK is a great option - there seem better, easier European choices, and as per up-thread we might do better to support that (even more).