Russell EFI push-on fitting – safety risk?

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i think this guys problem isnt the russel fuel line fittings but the fitment of a bmw enigne to a nissan thats more crazy to me hehehehe
bmw dont really make good engines heheheh

the gm engines normally use a steel fitting and they have 4 metal tags on the inside which lock onto the pipe once the fitting is pushed on
these fitting require special tools to remove them
where the one in the picture above is removed with pliers or fingers

but on the commodore rear end fuel lines and filters they do use a similar type of push on fitting but u cannot remove them with fingers but rather need long nose pliers and even then they are very hard to get off

u also have to be careful these days not to run too much rubber fuel line as they say the crap e10 fuel eats into rubber

i think the fuels these days have so much crap in them we dont know what damage they r doing but i have heard some cars catching alight due to rubber fuel lines being eaten away after awhile