Hi JC1 and welcome, good to have a new member posting in the forum. I have sympathy for your point and recall that BAR were stopped from having different liveries on each car as entrants must present one team identity. There are also big money rewards for teams according to their finishing position each year in the constructors championship. F1 therefore is clearly a team game, but, and it is a very big but, crucially it is also an individual contest between drivers.
Of course most teams do favour one driver over another at certain times and this falls under the heading of team orders. Although technically all team orders are banned like all wrongdoing you need proof before you can even charge, let alone prove guilt, and this can be a big difficulty.
IMHO the no team orders rule was really introduced to stop the blatant and very public place swapping that teams were indulging in, a clear attempt by the authourities to help safeguard the integrity of the competition in the drivers championship by stopping obvious race fixing. Ferrari of all the teams should know why this rule was introduced, they had to pay a million bucks the last time they pulled the same stunt.
I personally can't see any reason to overturn the rule, this is the first time it has been used since it was introduced and as far as I can recall it's the first time any team has so blatantly rigged the outcome of a race since then as well. The WMSC must act decisively to uphold what little integrity the drivers championship has, and to ensure races appear to be a real contest to the public.