Thank you for your interest and feedback on our controls.
Seems like the current implementation allows tokenizing of text outside of the suggestions only in append mode.
Since this is a behavior which should be supported not only in append mode I have created an issue in our feedback portal based on your feedback. Here is link
to it, this way you can be up to date with the status of the issue.
The fix will be included in one of our upcoming releases.
I have also added 500 Telerik points to your account for bringing the issue to our attention.
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Feedback Portal
and vote to affect the priority of the items