EU Referendum Rules triggering a 2nd EU Referendum - There's a lot of upset REMAINIACS out there

This petition has attracted over 880,000 signatures to date:

'We the undersigned call upon HM Government to implement a rule that if the remain or leave vote is less than 60% based a turnout less than 75% there should be another referendum.'

I can see the merit in this but wonder two things:

1. If the vote had been even 50.01% Remain to 49.99%  Leave how many of these signatories would have been in the slightest bothere?

2. Do the people signing this realise that this would apply from now, to change the current position, to get back into the EU. Or do they want a rerun?