Playstation Network trophies would actually be Sony's responsibility though, not SE's (the actual in-game achievements are all SE though). Really though, difficulty in attaining them is the tradeoff for collecting them in the first place, they're meant to be challenging - I learned that a long time ago, that my level of gaming skill means many achievments will simply never be attainable to me, as I'm very much a low skill player, by my own admittance.

That doesn't make the achievements 'badly designed', it just means I lack the skill to attain them. 'Know thyself' and all that. So I instead concentrate on achievements I know I can attain, and accept that many will never be completed.