This isn't even remotely true. People who are f2p are not necessarily unable to support the developers. (FYI Oasis isn't the developer for this game they are only a publisher). To people who are f2p, it is either a choice or it isn't. To me, web browser games are never worth spending cash on. Especially when they use shops to directly increase power and eventually force you to buy power. I will never financially support such models as the games are rarely even good.

If I was wanting to support the developers to any f2p game, I would only if they don't use a pay to win model and if the game play is good enough.