I don't think that is much of a problem in league play. It can be a factor in a tournament, though, which (I'm sure) is why "Geezer Guy" draws a distinction.
Unfortunately I think it is part of a larger trend to push the recreational game towards mostly social, mostly doubles, tennis. I hated it when we went to the Fall Combo League instead of having a non-USTA league set up just like the spring season.
I thought it was great when the fall season was a warm-up for spring, and a time to get your team together, and learn which partners worked well together, and who was more suited to singles. It was also a good time to let everyone play the same number of matches, and then in the spring you could be more aggressive and put your best available pairs out there each week.