You shouldn't see that there. Because "EOP" stands for "End of Presets".
A sound font can use zero-termination or EOP to finish presets.
If the software you are using sees the EOP termination as a preset, there is a problem.
SFspec24, Page 22:
"The terminal sfPresetHeader record should never be accessed, and exists only to provide a terminal wPresetBagNdx with which to determine the number of zones in the last preset. All other values are conventionally zero, with the exception of achPresetName, which can optionally be “EOP” indicating end of presets."