Disclaimer: I am not an expert!
If a WoM is NOT dismissed, the embassy apparently needs to expedite the visa process (if not obligatory, they seem to try to make a decision faster). Thus, an embassy should be able to expedite if they think it is necessary.
I personally think that politely contacting embassies should not have a negative impact on your visa application (unless experienced people here suggest otherwise). Also, former visa officers at Argo (see their YouTube channel) strongly recommend contacting the embassy to ensure your application is being actively reviewed!