Marketing funnel tends to hold different meaning for different people. Some see it as being simple others find it way top effective. Read more at marketingweek.com
Marketing funnel is concerned with targeting the customers actual needs. People also tend to change their buying preferences with each and every new product.
If you aim to achieve long term marketing success than you need to understand the importance of the marketing funnel.
If you wish to communicate your product to the audience than the funnel is the best option to go for. You also need to conduct a thorough research regarding funnel.