Nope.
1/25 is a big improvement because it's 4/100, with the 100 on the metric side -- where it doesn't matter (4 in = 1/3 ft = 100 mm = 10 cm = 1 dm).
There is nothing wrong with calling 1/2 litre a metric pint if it facilitates your sense of the amount, just like 1/2 kg is a metric pound. The metric system doesn't force you to dramatically change unit sizes, it just urges you to adapt them a little bit to get round numbers. So the following further response doesn't even matter:
1 litre sizes are more commonly seen in German shops than 2 litres or 1/2 litre. I guess that's in part because we still have lots of inner cities where people walk to for shopping, in part because glass bottles are still relatively popular, and in part because we are not being supersized. The most common sizes here are 1 litre tetrapaks and glass bottles for milk, juice and wine, 0.7 litres and 3/4 litre for mineral water (glass/plastic bottles) and 1 1/2 litre plastic bottles for lemonades. 1/2 litre and 330 ml (roughly 1/3 litre) are also common, but only because they are virtually the only unit size for (glass) bottles of beer. The unit in which beer is sold in Munich at Oktoberfest, called the "Maß", was 1.069 litres before metrication and is precisely 1 litre now. Otherwise the most common drink sizes in restaurants are 0.2 litres, 0.3 litres and 0.4 litres. 2 litre bottles are extremely rare here.
"1 liter bottles of anything are unloved orphans -- too big for one serving, but not big enough for the leftovers to even be worth saving."
I can't tell you how happy I am that I am neither your balance nor your rubbish container. And that there is still such a thing as a family meal without TV here, for which 1 litre of apple juice, 3/4 litres of carbonated mineral water and 1 litre of beer seems about right in the case of 2 adults and 2 children.