That's reading too much into the lines. Apple wanted to guarantee that a central piece of software for Mac's marketing success was under their control. Maintaining a Windows version of that software adds no value to Apple's users, so they stopped developing it.
From there to "Apple bought Logic to lock people to Macs" there is a huge leap of faith. The majority of Mac uses do not use Logic, so if their goal was to lock their users to their ecosystem, this move makes no sense.
Also, there are good and often better alternatives to Logic, including Cubase, which work on all major platforms. So if you don't want to move to a Mac from Windows or Linux for the next Logic version, you have many good options.
From there to "Apple bought Logic to lock people to Macs" there is a huge leap of faith. The majority of Mac uses do not use Logic, so if their goal was to lock their users to their ecosystem, this move makes no sense.
Also, there are good and often better alternatives to Logic, including Cubase, which work on all major platforms. So if you don't want to move to a Mac from Windows or Linux for the next Logic version, you have many good options.