Why are SaaS margins apparently dropping? The cost of producing saas is going down, no one is investing in new saas companies, the build your own saas will crum

Why are SaaS margins apparently dropping? The cost of producing saas is going down, no one is investing in new saas companies, the build your own saas will crumble as described in this article, meanwhile corporate IT departments will be decimated to pay for ballooning AI costs leaving saas as the only option to run companies. Are any saas companies actually reducing their prices?