It means that after bypassing the Activation Lock, your device will operate normally without any problems unless you reset it to factory settings. Please note that activation of the device occurs only once. In simple words, the iCloud bypass only skips the Activation step and makes the device understand that it has been activated. If Find My is enabled, the device asks you to enter your Apple ID and passcode to activate it.
When your iPhone or iPad connects to the Internet for the first time after updating or restoring, the device sends a request to the Apple Activation Server.
