Vamos repassar as exceptions para o Whoops somente quando o ambiente for local e se o debug estiver ativo.

public-function-render.php

<?php

    /**
     * Render an exception into an HTTP response.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Exception  $exception
     * @return \Illuminate\Http\Response
     */
    public function render($request, Exception $exception)
    {
         if (config('app.debug') && config('app.env') == 'local') {
            return $this->renderExceptionWithWhoops($request, $exception);
        }

        return parent::render($request, $exception);
    }