This was what we saw in 2012 though.
"Oh, it's just March, the domination is just because nobody else is in form yet"
"Oh, it's just April, the domination is just because everybody's focusing on the classics, not stage races"
"Oh, it's just May, the domination is just because everybody's on a form down cycle, it'll be different come July"
"Oh, it's just June, these are preparation races, the domination is just because everybody's preparing for July"
"Oh, it's July, the domination is because everybody else got their preparation wrong"
At some point you've just got to call a spade a spade and say, for whatever reason, one team is significantly better than the rest and is running roughshod over everybody else, destroying competition and meaning that the only intrigue left is intra-team.