Well, it's only what it is because it isn't forever.
Good stories have endings.
Doctor Who and not expect the same form of retroactive disquiet. Paul Cornell's Shadow of Avalon was pre-empted and thus the criticism was forearmed. The process of change and the vagaries of loss are such that, as themes in the novel, they are powerful and alluring, but as emotions that have to be ingested and dealt with giving a view to the future. Extreme reactions of loss would have this as a death knell for the 8DA range. Others are more speculative about the longevity of change.