What matters is that they take them into account in their forecasts of the variables that are factors in determining the general level of prices, such as inflation expectations and the deviation of final demand from the “potential” level of economic activity (i.e. that corresponding to full use of productive resources).
Much was made of China “missing” its 2014 growth target, by one tenth of a percentage point. (Let us in Australia hope our target misses are all only of that size.) Much was also made of the lower target set for 2015, but this was always going to occur, and successive growth objectives are likely to get progressively lower over the years ahead.