Google maps platformで自作のルートをmap上に描画しても良い？


標記の件、教えてください。  
Direction
APIでGoogleのナビゲーション機能（出発地と目的地をつなぐルートを算出する機能）があると思いますが、自分が引きたいルートを引いてくれないので、自作でルート探索アプリを作って、その結果をGoogle
map上に描画するのって規約上問題ありますでしょうか？  
下記の規約の条文の(c) No Re-Creating Google Products or Features.に抵触するかも。。。と感じました。  
ご教示いただけますと幸甚です。

> 3.2.4 Restrictions Against Misusing the Services.
>
> (a) No Scraping. Customer will not extract, export, scrape, or cache Google
> Maps Content for use outside the Services. For example, Customer will
> not:(i) pre-fetch, index, store, reshare, or rehost Google Maps Content
> outside the services; (ii) bulk download geocodes; (iii) copy business
> names, addresses, or user reviews; or (iv) use Google Maps Content with
> text-to-speech services. Caching is permitted for certain Services as
> described in the Maps Service Specific Terms.
>
> (b) No Creating Content From Google Maps Content. Customer will not create
> content based on Google Maps Content, including tracing, digitizing, or
> creating other datasets based on Google Maps Content.
>
> (c) No Re-Creating Google Products or Features. Customer will not use the
> Services to create a product or service with features that are substantially
> similar to or that re-create the features of another Google product or
> service. Customer’s product or service must contain substantial, independent
> value and features beyond the Google products or services. For example,
> Customer will not: (i) re-distribute the Google Maps Core Services or pass
> them off as if they were Customer’s services; (ii) create a substitute of
> the Google Maps Core Services, Google Maps, or Google Maps mobile apps, or
> their features; (iii) use the Google Maps Core Services in a listings or
> directory service or to create or augment an advertising product; (iv)
> combine data from the Directions API, Geolocation API, and Maps SDK for
> Android to create real-time navigation functionality substantially similar
> to the functionality provided by the Google Maps for Android mobile app.
>
> (d) No Use With Non-Google Maps. Customer will not use the Google Maps Core
> Services in a Customer Application that contains a non-Google map. For
> example, Customer will not (i) display Places listings on a non-Google map,
> or (ii) display Street View imagery and non-Google maps in the same Customer
> Application.




既にGoogleがサービスとして提供している機能の「置き換え(コピー)」を作ってしまうと、APIを通したサービスの利用者から見て  
機能の提供元(責任)がGoogleなのか開発者なのか分からなくなり、双方にとって好ましくない。APIを利用するなら  
独自性のあるものを、と言っているように読めます。

