why GGG literally cant make more hideout competitions

I agree with roknrodney here. I do not have anywhere near the hideout creation experience you guys have (I usually run out of favour and/or motivation midway through), but as far as I know, pay to win is most commonly used to refer to situations where you can pay to get an absolute advantage, which allows you to easily beat even opponents of superior skill.
Which, honestly, can and will never be possible with hideout decorations.