You will just have to base your next grill purchase decision on whether that cover will fit it or not.
What is an optimist? When my Dad was 85 or 86, and before I had to move him into a facility, I went out to visit him one day and found him up on the roof (with his walker parked at the base of the ladder) repairing some damaged shingles. When he got down and my heart rate got back to normal, he looked at me and said "I am going to get me one of them new metal roofs that last 50 years, I am tired of having to put a new shingle roof on every 20-25 years". That is an optimist.