Hearthpwn

So my question is if there is somehow a meta change concerning the hours of play. Maybe sometimes at night ppl are more prone to play certain archetypes or are just worst in general or their decks arent teched against the top tier decks.

My question comes from the fact that Ive been playing Big priest for the last month  in wild. yes im an idiot but i only play at 1 AM or 2 AM cause my working hours prohibit me from playing earlier so im tired and i dont want to think on  my plays. so with around 80 games with ranks from up until  14 in the last month in Wild ive achieved a 64% WR thats good and allowed me to climb at a steady rate. 

Today however ive played 21 matches during the day cause it was a national holiday and to my surprise around rank 18 i had 10 wins and 11 losses. is this normal? i never had this with the deck, It doesnt have Barnes, but for 80 matches i had 64% WR and now in 21 i had 11 losses? The only difference is that i played at day and faced a bunch of Shamans that because of Hex just screw with ur rez pool and play an endless stream of shudderwocks fiesta, actually most of them were standard decks too even when facing other classes. Again not normal.

I usually face Wild Big Priests, Rogues and reno mages and warlocks during the night, how come now everyone and their dog plays with standard decks AND they seem to be tailored to beat Big Priest but not one out of those 21 matches were Kingsbane Mill rogue?

DId I miss some kind of memo saying Big Priest aint top tier anymore? I guess im gonna play Kingsbane then, u know trade one cancer deck for another...