Do CRMs struggle to manage customer data?

I was wondering, do you think that CRMs are still effective for managing customer data?

"Businesses have to deal with potentially hundreds of customer touchpoints, yet in companies anchored to CRM, sales teams still have to manually enter customer information, resulting in human error, wasted working hours, and a fragmented or incomplete customer view. CRM software is also inflexible, forcing IT to choose between purchasing a one-size-fits-all cloud suite or building dozens of costly, time-consuming integrations."