well, in my opinion, i can see why
there are people playing the game in malaysia of course, and lowyat should not be the main place to discuss it, most likely they will be in reddit / bnet forum
secondly is that the game is getting too expensive i guess, you can definitely choose to play as a f2p, but with the current grade of cards, expansions and wild format, it is quite difficult to sustain as a premium f2p unless you play arena routinely and being really good at it or started the game really early in the beta phase
if you noticed in this expansion itself, most of the good cards disappeared and your deck is made from scratch again, and the core mechanics is the quest card, if you didn't get it, it will be quite difficult to know what deck to build and assess its quality as well
either way, the game is getting crazier lately as well, although shaman decks disappeared but generally the core crazy mechanics like jade are still here and some quest can otk as well like time warp mage