A 'higgly-piggly' credencial is only an issue if and when you present it at the Pilgrim Office to try to obtain a Compostela. The staff usually examines a credencial to use the chronological sellos to establish a definite line-of-march in a more or less direct line from somewhere at least 100 km distant, into Santiago.
If you are all over the place with no direct line for the final 100 km into Santiago, and if you want a Compostela, be prepared to explain your route. A paper map with a line drawn on the route to explain would help. But you still must document that you walked the FINAL 100 km on any route to get to Santiago.
As a suggestion, and if you are taking pictures along your travels; data and location-stamped smartphone photos have frequently saved the day for imaginative pilgrims who failed to obtain their sellos either in order, or in enough quantity (two each day for the final 100 km) to qualify the usual way. Most folks do not think of this, but it can help you explain your meandering ways.
Hope this helps.