Yeah, makes sense. Utd have been winning by simply out attacking sides. They still vulnerable at the back, their own fans have said as much repeatedly, but I have a feeling Klopp will almost be forced into playing a 'we'll score more than you' type of game Co see haven't had a settled defence for so long now that relying on that may be a bit risky & would equally be as likely to reduce our attacking threat, which after Bournemouth (& I'd guess Munich) will be attuned to playing a very attack minded game again.
Utd against PSG will be very interesting to see how they fare against a much better attacking side than they've faced in this run. If they try to defend we'll see how effective they are, when they attack we'll see if they can break down a higher calibre of defence too.
If they batter PSG then I'll start to really worry.