Agreed to some extent, winters are far superior at low temps. Dealers tend to over hype the '7 degree' marketing flannel in order to punt winter tyres onto customers, but the reality is top tier summer tyres are now pliable 'enough' down to 0 degrees. They will never match a winter tyre though, but the problem with the UK is it can be -4 degrees one day, and +10 degrees the next day. Winters are bloody useless in positive temperatures. Way too squishy and floppy. It needs to be really cold to get the benefit, which it just isn't (consistently) here.