Idk about that, a company like Form3, Edenred etc are technically just software companies - but no one in their right mind is going to build a black box payment provider. Sure, if your business is wordpress websites, you're probably going to see a big downswing in new customers. But there is absolutely still going to be a place for highly specialised and security dependent software.
something that solves a real problem for businesses, that you are uniquely positioned to execute on well.
If you target the lowest common denominator, or consumers, or build something really quickly - good luck