Softer sidewalled tires with more mass transfer & roll may even improve handling in some driving ways
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I like points brought up in this video: [ame="https://www.youtube.com/watch?v=m9kQrbPEXKU"]Tim Schrick and Sven Kueenle "enjoying the limits" - YouTube[/ame] , as argumenting against going overboard with stiffening up suspension/tires. Not everybody is pro to deal with such setups well, and fun driving on public roads and track, not on 10/10 limit in controlled track environment, might be good case of using such softer sidewall tires.