I think it's a bit unfair to knock it.
Yes, it's not a full Hybrid, but these cheap mild systems are keeping cheap cars on sale for us to buy.
I'm sure they'd be more people up in arms if manufacturers said, "right that's it, no more £12k or £13k cars, now you forked out £30k plus on a EV version or £20k plus on a full Hybrid for a small hatchback".
(if that sounds reasonable, what you doing here?)
Ok, it's not really anymore powerful than the 1.2 it replaces, though is more power progress?
It's probably only shaving a few grams of CO2 off and drawing out a couple of mpg over that engine, but add that savings over the fleet these engines are fitted to, at the small price it costs Fiat, it's obviously worth it to keep these cars on sale at a price people will pay.
Otherwise you'd expect to be saying addio per sempre to them real soon.