Agree, in fact I think La Liga clubs are full of surprises, that's why now La Liga representatives in the last 16 of the UCL are dominating, which indicates that La Liga clubs have a pretty troublesome game mentality. Successfully becoming group champions for Real Sociedad is an extraordinary achievement at the start of its journey. If I were Enrique then there would be no reason not to underestimate Real Sociedad, even though in the Domestic League they are ranked 6th in the standings, that doesn't mean PSG can easily beat this club. In my opinion, on the contrary Real Sociedad could be PSG nightmare to advance further in the Champions League.
That's why PSG must be quite alert when facing Real Sociedad because they could provide something unexpected. Becoming group champion by successfully dominating several competitors is not an easy job because Real Sociedad faced a much stronger team in the group phase. Luis Enrique had to try to improve his defensive line if he wanted to progress to the next round and they couldn't provide space for Real Sociedad players to attack.
If there is a quick goal in the match then everything can change because the tension of the match will become sharper. Luckily, PSG is the favorite to play at home, so there are many things that will benefit when Luis Enrique can prepare everything well.