"Eventually the outer eyewall replaces the inner one completely and the storm can be the same intensity as it was previously or, in some cases, even stronger."
Source: http://www.aoml.noaa.gov/hrd/tcfaq/D8.html
You are wrong.
That's only if conditions remain status quo. Since the storm is now moving over land, it will only weaken at this point as it's deprived of warm water.