Your idea is very precise, I remember with the XUC exchange union project. If I'm not mistaken they pay campaign prizes using eth. This is very influential on token prices in the future, because there is no dump of the campaign participants and developers do not need to spend money to pump the price of coins. At ico the price of XUC is only $2.2 and the current price has reached $6.6 , very different from the project paying the campaign reward using its own coin. This is the best solution for the project to go according to plan and without any risk.
Here it is precisely noticed, so it will be much better and more favorable both to both parties. It is a pity that many do not think of it before.