Hi there!
Yes, I think I got it. That leading article view is by style of the template Finion. I mean it was intentionally designed like this.
However, if you want to show the introtext of the right content then you can use the following code in your custom CSS:
.case-studies .article-list.articles-leading .article:nth-child(2) .article-introtext {
display: block;
}
Note: Path towards custom CSS: Extensions>Templates>Styles> Click on your current default template name then choose Template Options. Then find custom CSS within the custom code.
Best Regards