No it is not. The poster is appears to mistakenly believe that F-35B's would hover for purposes of close air support. It would never do that because the VTOL capabilities of the F-35B are exclusively for short range take off and landing.

The US has around 10 Amphibious Assault Ship which now thanks to the F-35B's are among some of the most capable carriers in the world. Factor in the ability to take off from rapidly constructed airbases throughout the pacific and the F-35B is one of the most dangerous airplanes currently in production. A squadron could sneak up from completely unexpected directions from bases which had not existed in your satellite reconnaissance just a day ago.