The closure of the quantum computing lab by Alibaba is a cost-cutting measure that could be seen as a positive in terms of financial prudence, potentially leading to improved profitability in the short term. However, it may also raise concerns about the company's commitment to innovation and long-term growth, which could have a mixed impact on investor sentiment. The news is directly related to Alibaba and is of moderate importance to investors, as it pertains to the company's strategic direction.