Different people, different preferences, different tastes.
It really is as simple as that.
The "This Year Is Rubbish" bandwagon is overblown tho. I'm not in love with it either, but it is enjoyable as of now. As Alaska (once again) truthfully pointed out, we've too deeply gone down the rabbit hole of slamming onto a year which, in reality, is still easily better than 2011/2012. For people who think this selection is bad, I'm looking forward for when you have to force yourself through an actual shitty year of Eurovision. Most of you wouldn't survive Dublin1995 or Paris1978 intact by the sound of it.
Of course, when the first batch of songs are underwhelming according to whichever musical standard you've unwisely chosen to project onto them, it creates a snowball effect where every entry, no matter how you slice it, is going to underwhelm you. In other words, you're creating a narrative in which songs suck not because they suck, but because you have been expecting them to suck. It's a self-fulfilling prophecy and one of your own making.
Sometimes it's better to just be happy with what you have and see what happens, rather than jump to brash conclusions. If life gives you lemons, make lemonade. If life gives you Lausanne1989, use a blowtorch. But if you truly desire to continue torturing yourself over events you've had zero control over, by all means, be my guest. God bless you and shalom.