Yeah but no but...
Punkalouve raises a very good point.
I know of at least one incident in the west, UK actually, last year where de-icing was less than thorough, with significant snow and ice left in place on both wings.
Chances are, if its happened once, it can happen again.
With that in mind I always do my own post de-icing inspection, but, whilst I can see the wings I cannot see the top of the Stab and have to trust that the de-icing crew, and regardless of how competant I think they are, it leaves that slight element of doubt..........