Ferrari and Vettel had so so many more failures prior to the hybrids than since. Vettel only had one year under Renault engines than switched to Ferrari and Ferrari have had a pretty rock solid engine. 95% of his issues since hybrids have been his own mistakes or team tactical errors, and even that is weighted way more heavily to his own mistakes.
During the RBR years he had failure after failure with NA engines, alternators, gearboxes, etc.
Just him trying to deflect. During the race when told to switch he offered zero surprise to it, first response was something like "okay, but maybe in a couple of laps". So he knew about the plan to give it up but the delayed it, then pushed hard to build a gap to have an excuse not to do it while Leclerc is being told he'll be let by every lap and he's not pushing hard because their goal isn't to push as hard as possible but go as far into the race as possible.
After the race Vettel is saying maybe there was a deal but he can't talk about it, implies there was help to get ahead of Hamilton but not about giving the place back even though on the radio we know he full well knew about that.
Vettel in full on deflection mode, didn't ignore team orders, didn't take advantage of Leclerc and oh yeah, lets make this about hybrid engines being bad.