I agree DoT is a highly scalable platform and cross-hybrid compatibility among other blockchains.  But if said the most important, not yet.  In part, Dot just came into existence not long ago, a guaranteed platform needs to be maintained, secure, and stable in order to draw the ability to assert its importance. 
Dot has a huge boom this year with 10x, With Dot, just wait because it has not shown its full potential in adapting well for the long term.  So it deserves a highly viable option.