JesseBank:
The big teams are absolutely running concurrent development programs, but when a team the size of Honda decides to completely stop with the current car and devote all work to the new one, it gets twice the attention and money. [...]
The KERS development was also quite costly in terms of resources, particularly for comparatively little gain on track (so far). Thats definitely hurt McLaren, Ferrari and BMW.
Quite a lot of Ferrari´s and McLaren´s development ressources were used for the competing car last year, both suffered from lack of development this year. There were a few mistakes from Ferrari right at the beginning, e.g. the unstable front wing, that shed a light on the current situation. The mistakes that have been made this season so far are ridiculous for an F1 competitor, even more so for one of the leading companies.
Honda would not have been that far ahead with the current car since the engine was clearly lacking in performance and driveability. I suspect that the uniform engine configuration of 2.4 litres / 8 cylinders does not cause too much hassle in adapting a different engine anymore, especially if this´d be one of the leading brands´.
If it comes to regulations, it is nothing more than a bloody mess - none of the decisions that have been made in the recent past has changed F1 for the better, apart from the fact that the changes in technical regulations has propelled the teams at different positions on the grid. Other than that, it didn´t save time, money and effort nor did it increase transparency. BMW, by the way, has been the only team that encouraged to use KERS this season.