From the article, in case not everyone sees it...
From Lady Hallett
In a letter to the Cabinet Office, she remarked: “It may be necessary for reasons of context for me to understand the other (superficially unrelated) political matters with which they were concerned at the time. Such matters may acquire greater significance where it appears to me . . . that a minister dealt with Covid-related issues inadequately because he or she was focusing (perhaps inappropriately) on other issues.”
Yeah... parties at Chequers and No. 10 could be 'other issues'!