>>53563721So do you only play Pokemon?
Plenty of games, both mobile and console, that have online features also have limited time events. If you miss them, no big deal, a new different event will come, or a different game even.
Or, if you actually WANT to experience those events, to get the rewards, you can't blame game freak for that.
If you want rewards others already got through this event, then it's YOUR desire. Not their 'manipulation'. You want it. But then you decide not to work for it, so you blame the game for seducing you or whatever.
If you want it, PLAY IT. If not, don't play. It's always your decision. Those limited time rewards are not vital or necessary.
It's all you.