I know what you mean and I'd be the first person to say that tracks shouldn't be made to mix friendly specifically - part of the fun of mixing is the challenge! What I'm saying is that hard style tunes are more aimed at a style of mixing that is LESS about blending two tracks together and more about blagging breakdowns to quickly cut out a track and leave with a pause before the 2nd track kicks in, - or this is what I'm hearing when I listen to most hard style sets.
Like I say, not complaining that the hard style tracks are too hard to mix as at the end of the day they aren't, I'm saying that the cunning and blending part of mixing that I find most creative and fun is a bit lost with hard style for the reasons I mentioned.
Top and bottom of me posting this is because I hate it when a mix involves a track being cut out quickly leaving a pause before a new beat comes in. I love the sound of a mix that uses both tunes elements to cross over and keep the beats flowing... a mix that comes across as one track evolving in to the next one, as opposed to sounding like it was supposed to break down and stop for the next one to hammer in after a pause.