... is it right that html pages get more importance in search engines.
Is it wrong?
The way I look at it, it depends upon where you stand. If you enjoy some benefit, it's right. If you suffer some deficiency because of it, it's wrong.
But from the point of view of the SEs, it's their game. They get to decide how it's done. We can either play along enthusiastically, grudgingly accept the "rules" and play along anyway, or simply refuse to play.
Choice is marvelous, is it not.