Yeah, from the article:

The diamonds produced using this method are minuscule, hundreds of thousands of times smaller than those grown with the HPHT method. Hence, these diamonds are far too small for jewelry applications.

However, their use in technological applications, such as drilling or polishing, is a possibility. Due to the low pressure involved in the new method, it might be feasible to significantly scale up diamond synthesis.

However, i bet they are already thinking of getting bigger ones, and might succeed eventually.