This poll is an obvious fake to make pro-Brexit folks relax and pro-EU folks flock to the polls. The true sentiment is very close, or slightly pro-EU.
Polls, schmolls. The devil’s in the details. Is the plebiscite binding? What’s the timetable? Even if the good guys win the referendum, the powerful interests behind EU will do anything to thwart the will of the people. The referendum is probably no more binding than a congressional resolution.