The merge was proposed Nov 23, so you will probably have to wait for the default 30 day period to expire. The other PM does not seem to be active on wikitree for over a year and must not have approved the merge proposal when he received it.
Unfortunately, there are a lot of profiles that were created a long time ago that look like that profile. Looking at the changes log, it doesn't show that any relationships were created, nor any biography with sources, when the profile was created, so it is difficult to know if it is the same. There is always a possibility that there was someone else in the Virginia area at that timeframe with the same name, but with no other relationships being affected, it doesn't really make sense to not merge them.
When the merge is done, someone will have to be careful to merge it into the correct Birth Name spelling, since there is a difference in the profiles.