The reason behind Bernie's reluctance to change engine

[Irisado]

The noise from the engine isn't a factor for me.  What matters to me is that the small teams get a fair deal on engine costs, and that the engines can actually fail.  I want to see engine failures.  Formula 1 is meant to be about pushing the limit, and if no engines ever blow up, the limit isn't being reached, let alone pushed.

If turbos bring back unreliability, then great, if they don't, then it's a poor return for the spectacle of Formula One, especially if the small teams are forced to pay more for their engines.

[Alianora La Canta]

But the whole problem is that the switch to the Politically Correct mini-motors isn't saving money. The extra cost is mega.

Introducing something new will be costly initially, but over the time it may show that the initial investment was worthy of it. But I do not agree with the way FIA handled this engine develpment 

They let the manufacturer's freely spend on the develpment, and then put it in the shoulder of customer cars to make their ends meet. That is more burden for the smaller teams, who already being stretched for finances, almost all of them are relying on a pay driver for their budget.

The trouble is that the majority of teams earn sponsorship from the aero (since that's now the only cutting-edge thing about F1 tech) and then pay part of that towards the engines. It's difficult to restrict something that's an earner for teams on the edge.