Really? Do you object to high-end raids, then? Because people with low-end machines, really bad ping times, or just plain clumsy fingers (e.g., arthritis) are essentially locked out of that content.
Fact is, differences in what people 'get for their subscription" are inevitable.
"How much" a person gets is highly correlated with
- their ability,
- the capability of their hardware and network connection,
- their level of interest in the various parts of the game, and
- the level of effort they put in.
Accordingly, some people will
always get more, and some people will
always get less.
It's true for many other kinds of subscriptions as well. Look at cable TV subscriptions, for example.