Only in part, (just to see how many remember it).
The centre being the bit where the best ideas coalesce, with occasional good or new input from the left or right of politics.
It seems to be the direction of current government. Having got elected, and realizing that Brexit included a few unwanted consequences, the party has moved a bit too far to the left, taking the original analogy with it.
To carry on with the metaphor of navigating and steering a ship, staying in the centre is where you do not run aground and keep your eyes open for unexpected things like other vessels, and remain alert to emergencies like stormy weather or machinery breakdowns.
Personally the analogy I would use is an aircraft landing on a ship - but that would need explaining to many people. They should understand the concept of a ship not running aground, having a collision, or a storm.