Resolving Egypt’s Suez grievance worsened rather than improved Middle East stability

Evidence

For those who held them, those hopes have been disappointed. The general situation in the Middle East, far from improving, deteriorated rapidly. The Egypt-Israel border, after a period of comparative calm, became and remained the chief battlefield of Israeli-Arab conflict. The removal of the last specifically Egyptian grievance left the Egyptians free to take up the larger causes of those whom they call their Arab and African brothers. And finally, although the term power vacuum may be objectionable, the fact remains that the withdrawal of British influence has been preceded, accompanied, and followed by the growth of the influence of other powers. — Bernard Lewis, From Babel to Dragomans, 1177

Categorization

• XREF: The hope-that-concession-improves-relations pattern recurs in colonial withdrawal literature; parallels the ‘Grafting & Growth’ essay’s theme of addressing grievances exposing deeper conflicts.
• QUESTION: Why did removing Egypt’s specific grievance immediately shift its attention to pan-Arab causes? Was this acceleration foreseeable to the British?