i think thats a yes and no answer. i've seen people who are horrible at forms but could fight with the techniques housed in their form, and on the flip side, people who are great at forms and couldn't fight their way out of a wet paper bag.
IMO, the only time forms are useful is if there are fundamental building blocks that are being transmitted through the repetition of technique and movement transition. i think its more important to learn the technique outside of the form first, learn how it is applied, and learn how to bring that into play in free sparring, then learn the form that holds that technique.
i also think you would be just fine never learning any forms at all ever. i believe any style can transmit their combatives without the use of forms, and probably to a more effecient degree.
For whoso comes amongst many shall one day find that no one man is by so far the mightiest of all.