Silver Lining to the Local Elections?

The overall consensus on the local elections last week appears to be that they were a disappointment for Labour, which I tend to agree with.  A typical analysis is here.  However, this does give the Labour Party the chance to honestly face the problem.  The 2017 Election struck me as leaving the Party in a dangerous state of hubris, as if it had won, whereas of course 2017 was Labour's third consecutive defeat, and all previous precedents point to a fourth defeat at the next General Election.  The Labour Party now has an opportunity to take stock and work out a strategy to broaden its appeal.  Even those who do believe in a one more heave approach should consider this.

After all, no one ever lost an election by getting too many votes.

Incidentally, it also calls into question the negativity of the Momentum approach.  Although Momentum claims to be an optimistic movement its campaigns always appear to be against something or some one.  The very name of the "Unseat" campaign points to this.  Perhaps it needs to think more rigorously about being for something.