A family of Microsoft relational database management systems designed for ease of use.
Yup, I can confirm this bug. This only shows up for me when importing into an existing table that was created in Access 2010 (2003 tables are not affected).
Instead of writing custom code to work around it, I found a much easier way. Import the data into a new table, setting the proper data types in the import process. Formatted numbers will be imported correctly. Then make an append query to add to the table you wanted the data actually imported into in the first place.
Our shop uses access extensively to reformat and combine data into many reports. This is the fastest way we have found to work around the regression.