However, I have a concern. Since they have those details, is there any way they could control (reset/remove the Apple ID) of the MacBook?
If you personally purchased the laptop via retail channels, any software they could have installed to control or monitor the laptop would not survive a factory reset.
If somehow the laptop was permanently associated via Automated Deployment with an MDM profile and you did a factory reset, you would get a popup during setup with the name of the company indicating that they would have the ability to control the laptop. You could ask them to remove the laptop from their Apple Business account and/or MDM solution and reset again.
The serial number was for the warranty and in case it got stolen (you did get a receipt from them right?)