Yes, I think this is acurate. You can mitigate or minimize the amount of muscle loss, with proper diet deficit and overall weight training (the weight training will provide the body the assistant stimulant to try to hold on to the muscle it has).
Think about this. When one cuts (even if they manipulate the ratios of protein, carbs, and good fats), there reducing the amount of energy to the body, mainly through deficit dieting.
The composite of muscle is more nutrient dense. And when the body starts to look for--------more energy it WILL look in both places: Muscle and Fat.
however, with this in mind, the more important elements are the total circumference of the diet nutrients, rather than just the over rated and over hyped protein.
Just one essential organ not getting what it needs, will hamper progress, and you can take all the protein you want until the sun goes down, its not gonna help ya. The body works as a machine and together as one unit, and protein is just one important element among many other important elements the body needs. Its a small peice in the larger pie.
Protein is NOT the muscle breaker nor muscle maker--in itself--when considering OVERALL circumference of what the body needs, its just a play enumerator. IF it were, lets remove steroids, and we would have a different (what they call) professional body building competition set. Its difficult growing muscle naturally or to develop more muscle, and whats more important is the overall circumference of nutrients and calories.
Therefore, the answer is NO, one cannot maintain in "totality" the same muscle mass as when they bulked as compared to when they cut, there may be exceptions, but in general this is true. In general, the poll results are wrong--as far as the "yes" votes. And, no protein---in itself--is not the MAIN answer to assist in maintaining mass, like I said, its an important element in the equation, but among other important ones.