I think you are either taking things out of context, or some folks are just trying to run down your mac because their boat doesnt sail as well as yours does....I have heard other "real" sailors such as TKanzler above state the Macs don't sail as well and I take their word for it.
macs are one of the very easiest sailing boats there is, and they sail well for what what they were intended for, and in almost every case, you can push the envelope and sail outside the lines of what they were intended for and they still perform beautifully.....
yes, the macs are rigged simple and sparse and there are many other boats with seemingly more "status", but most all of them are more complex to sail than the mac.....
you can look at a new mac with its sparsely set up rigging and deck hardware, and then look at another new boat of any other brand next to it that has a full compliment of rigging, deck hardware and cabin accommodations......
to someone who likes gadgets, gizmos and fluff, the mac probably looks like something that is just taking up too much dock space..... but for dependability and ease of sailing, ill take the mac...
but every boat has its purpose, and every man has his budget....
some folks have more money than brains, and others have more brains than money....
so its hard to say that any given boat is not as good as another, until you get more information on what the intended purpose for it is.... but the macgregor is one of the very best boats for its intended purpose....